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  • PGT-A vs PGT-M for Balanced Translocation: What Carriers Should Know

    If you or your partner carry a balanced translocation, you may be exploring IVF with preimplantation genetic testing (PGT) to reduce the chance of miscarriage or a child with a chromosomal imbalance. In Thailand, clinics offer several types of PGT, and the terminology can be confusing. This guide explains the differences between PGT-A, PGT-M, and PGT-SR, how they relate to balanced translocations, and what to consider when planning your treatment.

    At a Glance: Key Points

    • Balanced translocation carriers often have normal health but may face fertility challenges.
    • PGT-A screens for chromosome number abnormalities (aneuploidy) in embryos.
    • PGT-M tests for a specific genetic condition, such as a single-gene disorder.
    • PGT-SR is designed to detect structural rearrangements like balanced translocations.
    • PGT-SR is often the most relevant test for translocation carriers, but it may be combined with PGT-A or PGT-M depending on your situation.
    • No test guarantees a pregnancy or a healthy child; all have limitations.

    Understanding Balanced Translocations

    A balanced translocation is a chromosomal rearrangement where segments of two chromosomes have swapped places, but the total amount of genetic material is normal. Carriers usually have no health problems themselves, but they may produce eggs or sperm with unbalanced chromosomes, leading to miscarriages, infertility, or a child with developmental issues.

    If you are a carrier, you may have been advised to consider IVF with PGT to select embryos that are chromosomally balanced or normal. However, the type of PGT you need depends on the specific translocation and your reproductive history.

    What Is PGT-A?

    PGT-A (preimplantation genetic testing for aneuploidy) screens embryos for the correct number of chromosomes. It does not look for specific structural rearrangements like translocations. Instead, it identifies embryos with missing or extra chromosomes, which are a common cause of implantation failure and miscarriage.

    For balanced translocation carriers, PGT-A can be useful because it may detect embryos with unbalanced chromosomes that result from the translocation. However, PGT-A is not designed to distinguish between a balanced translocation carrier and a completely normal embryo. Both may appear normal on PGT-A because they have the correct amount of genetic material.

    What Is PGT-M?

    PGT-M (preimplantation genetic testing for monogenic disorders) is used to test for a specific single-gene condition, such as cystic fibrosis or Huntington’s disease. It requires a prior genetic diagnosis in the family and involves building a test specific to that mutation.

    PGT-M is not typically used for balanced translocations unless the translocation disrupts a specific gene or is associated with a known genetic syndrome. In such cases, PGT-M might be combined with PGT-SR to address both the translocation and the gene disorder.

    What Is PGT-SR?

    PGT-SR (preimplantation genetic testing for structural rearrangements) is specifically designed to detect structural chromosomal abnormalities, including balanced translocations, inversions, and other rearrangements. It can identify embryos that carry the balanced translocation (like the parent) and those that are completely normal, as well as those with unbalanced chromosomes.

    For balanced translocation carriers, PGT-SR is often the most appropriate test because it directly assesses the translocation. However, PGT-SR may not be available at every clinic, and its accuracy depends on the laboratory’s technology and expertise.

    Comparing PGT-A, PGT-M, and PGT-SR

    Test What It Screens For Relevance to Balanced Translocation
    PGT-A Chromosome number (aneuploidy) May detect unbalanced embryos but cannot distinguish balanced carriers from normal
    PGT-M Specific single-gene disorder Only if the translocation is linked to a gene disorder
    PGT-SR Structural rearrangements (e.g., translocations) Directly identifies balanced, unbalanced, and normal embryos

    Which Test Is Right for You?

    The choice between PGT-A, PGT-M, and PGT-SR depends on your specific translocation, your medical history, and the recommendations of your fertility specialist. In many cases, PGT-SR is the primary test for translocation carriers, but it may be combined with PGT-A to also screen for common aneuploidies.

    If you have a balanced translocation and are considering IVF in Thailand, you should ask your clinic:

    • Do you offer PGT-SR? If not, what alternatives are available?
    • How many embryos are typically biopsied, and what is the expected turnaround time for results?
    • What is the laboratory’s experience with balanced translocations?
    • Will PGT-A be performed in addition to PGT-SR, and why?
    • What are the limitations of the test in terms of detecting mosaicism or other complexities?

    Limitations and Considerations

    No genetic test can guarantee a successful pregnancy or a healthy child. PGT-SR and PGT-A have limitations, including the possibility of inconclusive results, mosaicism (when an embryo has both normal and abnormal cells), and the risk of embryo damage during biopsy.

    Additionally, PGT cannot prevent all genetic conditions, and some embryos may be deemed unsuitable for transfer even if they are balanced. It is important to discuss the potential outcomes and limitations with your genetic counselor and fertility team.

    Next Steps: Questions to Ask Your Clinic

    Before starting treatment, consider asking your clinic the following questions:

    • What type of PGT do you recommend for my specific translocation, and why?
    • How many embryos are typically available for testing after IVF?
    • What is the cost of PGT-SR, PGT-A, and PGT-M, and are there additional fees for biopsy or shipping?
    • How long does it take to receive results, and how does that affect the timing of a frozen embryo transfer?
    • Do you have a genetic counselor on staff to help interpret results?

    Taking the time to understand your options can help you make an informed decision that aligns with your family goals.

    Frequently asked questions

    Can PGT-A detect balanced translocations?

    PGT-A screens for the correct number of chromosomes, so it can detect embryos with unbalanced chromosomes that may result from a translocation. However, it cannot distinguish between a balanced translocation carrier and a completely normal embryo, as both have the correct amount of genetic material.

    What is the difference between PGT-SR and PGT-A?

    PGT-SR is specifically designed to detect structural rearrangements like balanced translocations, while PGT-A screens for aneuploidy (missing or extra chromosomes). PGT-SR can identify whether an embryo carries the balanced translocation, is completely normal, or has an unbalanced arrangement.

    Is PGT-M ever used for balanced translocations?

    PGT-M is used for single-gene disorders. It may be relevant if the translocation disrupts a specific gene or is associated with a known genetic syndrome. In such cases, PGT-M might be combined with PGT-SR to address both the translocation and the gene disorder.

    What are the limitations of PGT-SR?

    PGT-SR has limitations, including the possibility of inconclusive results, mosaicism, and the risk of embryo damage during biopsy. It also cannot guarantee a successful pregnancy or a healthy child. Discuss these limitations with your clinic.

    Continue your research

    Medical information notice: This article is educational and does not replace individual assessment, diagnosis, genetic counselling or treatment advice from a licensed clinician. Provider services, availability, fees and policies should be verified directly before booking.

  • PGT-A vs PGT-M for Aneuploidy Screening in Thailand: What’s the Difference?

    If you are exploring IVF in Thailand, you may have come across terms like PGT-A and PGT-M. Both are types of preimplantation genetic testing, but they serve different purposes. This guide explains the difference, focusing on which test screens for aneuploidy, and how they may be used together.

    At a Glance: PGT-A vs PGT-M

    • PGT-A screens embryos for aneuploidy (abnormal number of chromosomes).
    • PGT-M tests for specific genetic mutations that one or both parents carry.
    • They answer different questions and can be used together in some cases.
    • Neither test guarantees a pregnancy or a healthy baby.

    What Is Aneuploidy?

    Aneuploidy is the presence of an abnormal number of chromosomes in a cell. Humans typically have 46 chromosomes in each cell, arranged in 23 pairs. An embryo with an extra or missing chromosome is considered aneuploid. Many aneuploid embryos do not implant or result in miscarriage, and some can lead to conditions such as Down syndrome.

    PGT-A is designed to detect aneuploidy in embryos created through IVF before transfer.

    What Is PGT-A?

    PGT-A stands for preimplantation genetic testing for aneuploidy. It screens embryos for chromosomal abnormalities, specifically looking for extra or missing chromosomes. This test can help identify embryos that are more likely to implant and develop normally, but it does not guarantee success.

    PGT-A is sometimes recommended for women of advanced maternal age, couples with a history of recurrent miscarriage, or those who have had multiple failed IVF cycles. However, it is not necessary for everyone.

    What Is PGT-M?

    PGT-M stands for preimplantation genetic testing for monogenic disorders. It is used when one or both parents carry a specific genetic mutation that could cause a serious inherited condition, such as cystic fibrosis or Huntington’s disease. PGT-M tests embryos for that particular mutation, allowing the transfer of embryos that do not carry it.

    PGT-M is not a general screening test; it is targeted to a known genetic risk.

    Key Differences: PGT-A vs PGT-M

    Aspect PGT-A PGT-M
    Purpose Screens for aneuploidy (chromosomal number abnormalities) Tests for a specific genetic mutation
    Who may consider it People with concerns about embryo chromosome health Couples with a known inherited condition
    What it detects Extra or missing chromosomes Presence or absence of a specific mutation
    Can it be used together? Yes, with PGT-M Yes, with PGT-A

    Can PGT-A and PGT-M Be Used Together?

    Yes, in some situations, both tests may be performed on the same embryo. For example, if a couple carries a genetic mutation and also wants to screen for aneuploidy, they might use PGT-M to select embryos without the mutation and PGT-A to select embryos with a normal chromosome number. This combined approach can provide more information, but it is not always necessary or available.

    Discuss with your clinic whether combined testing is appropriate for your situation.

    What About PGT-SR?

    You may also hear about PGT-SR, which stands for preimplantation genetic testing for structural rearrangements. This test is used when one parent has a chromosomal rearrangement, such as a translocation, that could lead to unbalanced chromosomes in embryos. PGT-SR is different from PGT-A and PGT-M, but it also aims to identify embryos with a higher chance of implantation.

    How Are These Tests Performed?

    PGT is performed on embryos created through IVF. After fertilization, embryos are cultured for several days. A small number of cells are then biopsied from each embryo, usually on day 5 or day 6. These cells are sent to a laboratory for genetic analysis. The results help guide which embryos to consider for transfer.

    The biopsy process is delicate and requires specialized expertise. The testing itself is done in a genetics laboratory, which may be located within the clinic or at an external facility.

    What Do the Results Mean?

    PGT-A results typically categorize embryos as:

    • Euploid – normal number of chromosomes
    • Aneuploid – abnormal number of chromosomes
    • Mosaic – a mix of normal and abnormal cells

    PGT-M results indicate whether an embryo carries the specific mutation tested for. However, results are not always black and white. Mosaic embryos, for example, may have varying levels of abnormal cells, and their potential is still being studied.

    It is important to discuss your results with a genetic counselor or your doctor to understand what they mean for your specific situation.

    Limitations and Considerations

    PGT is a powerful tool, but it has limitations:

    • It does not guarantee a pregnancy or a healthy baby.
    • It cannot detect all genetic conditions or birth defects.
    • It involves an invasive biopsy, which carries a small risk to the embryo.
    • It is not necessary for everyone and may not be recommended for all patients.
    • Results can be inconclusive or show mosaicism, which can be difficult to interpret.

    Before deciding on PGT, consider your medical history, age, and personal preferences. A fertility specialist can help you weigh the potential benefits and risks.

    Questions to Ask Your Clinic

    If you are considering PGT in Thailand, ask your clinic:

    • Which type of PGT do you recommend for my situation, and why?
    • Does your laboratory have experience with PGT-A and PGT-M?
    • How long will it take to get results?
    • What are the costs involved, and are they separate from IVF?
    • How do you handle mosaic or inconclusive results?
    • Is genetic counseling available?

    Next Steps

    If you are exploring PGT in Thailand, take these steps:

    1. Research clinics that offer PGT and understand their approach.
    2. Schedule a consultation to discuss your medical history and testing options.
    3. Ask about the laboratory used for genetic analysis.
    4. Clarify costs and timelines.
    5. Consider speaking with a genetic counselor.

    For more information, see our PGT in Thailand guide, explore other guides, or check our FAQ.

    Frequently asked questions

    Does PGT-A screen for aneuploidy?

    Yes, PGT-A is specifically designed to screen embryos for aneuploidy, which is an abnormal number of chromosomes. It can identify embryos with extra or missing chromosomes, which may affect implantation or development.

    Can PGT-M detect aneuploidy?

    No, PGT-M is not designed to detect aneuploidy. It tests for a specific genetic mutation that one or both parents carry. If you need both aneuploidy screening and mutation testing, you may consider using PGT-A and PGT-M together.

    Is PGT-A necessary for everyone doing IVF?

    No, PGT-A is not necessary for everyone. It may be recommended for certain situations, such as advanced maternal age, recurrent miscarriage, or previous failed IVF cycles. Your doctor can help you decide if it is appropriate for you.

    What is the difference between PGT-A and PGT-SR?

    PGT-A screens for aneuploidy (chromosome number abnormalities), while PGT-SR is used when one parent has a structural rearrangement of chromosomes, such as a translocation. Both aim to identify embryos with a higher chance of implantation, but they address different types of chromosomal issues.

    Continue your research

    Medical information notice: This article is educational and does not replace individual assessment, diagnosis, genetic counselling or treatment advice from a licensed clinician. Provider services, availability, fees and policies should be verified directly before booking.

  • PGT-A vs PGT-M for HLA Matching in Thailand: What Patients Need to Know

    Understanding PGT-A and PGT-M

    Preimplantation genetic testing (PGT) is a set of techniques used to screen embryos created through IVF before transfer. Two common types are PGT-A and PGT-M. PGT-A (aneuploidy testing) checks embryos for an abnormal number of chromosomes, which can affect implantation or lead to miscarriage. PGT-M (monogenic testing) looks for specific single-gene disorders, such as thalassemia, and can also be used to identify embryos with a particular tissue type, known as HLA matching.

    For patients who already have a child with a condition like thalassemia or a blood disorder, PGT-M can help select an embryo that is both free of the genetic condition and a tissue match for the existing child. This allows the birth of a healthy sibling whose umbilical cord blood or bone marrow could potentially be used for treatment.

    Why PGT-A Alone Is Not Enough for HLA Matching

    HLA (human leukocyte antigen) typing is a genetic test that determines tissue compatibility. PGT-A does not examine HLA genes; it only counts chromosomes. Therefore, PGT-A cannot tell you whether an embryo is a match for a sibling. To achieve HLA matching, PGT-M must be performed using a specific test designed to identify the HLA type of each embryo.

    In some cases, clinics may combine PGT-A and PGT-M in the same IVF cycle. This means embryos are screened for both chromosomal abnormalities and the specific genetic condition, as well as HLA type. However, PGT-A alone will not provide the information needed for HLA matching.

    How PGT-M for HLA Matching Works in Thailand

    In Thailand, PGT-M for HLA matching is offered at specialized fertility centers. The process typically involves several steps:

    1. Consultation and genetic counseling: You will meet with a fertility specialist and a genetic counselor to discuss your family history, the genetic condition involved, and the feasibility of HLA matching.
    2. IVF cycle: You undergo ovarian stimulation and egg retrieval, and the eggs are fertilized with sperm in the laboratory to create embryos.
    3. Embryo biopsy: A few cells are removed from each embryo, usually on day 5 or 6 of development.
    4. Genetic testing: The biopsied cells are sent to a genetics laboratory for PGT-M, which includes testing for the specific genetic disorder and HLA typing.
    5. Embryo selection: Only embryos that are both unaffected by the genetic condition and HLA-matched to the existing child are considered for transfer.
    6. Frozen embryo transfer: A suitable embryo is thawed and transferred to your uterus.

    It is important to note that the entire process requires careful planning and coordination between the fertility clinic and the genetics laboratory. Not all clinics in Thailand may offer PGT-M for HLA matching, so you will need to confirm availability and specific protocols with the clinic you choose.

    Key Differences Between PGT-A and PGT-M

    Aspect PGT-A PGT-M
    Purpose Screen for chromosomal abnormalities (aneuploidy) Detect specific single-gene disorders and HLA type
    What it tests Number of chromosomes Specific gene mutations and HLA markers
    Can it select for HLA match? No Yes, when designed for that purpose
    Typical use To improve implantation chances and reduce miscarriage risk To avoid passing on a genetic disease and to find a tissue match for a sibling
    Combination Often used alone or with PGT-M May be combined with PGT-A for additional screening

    Considerations for Patients Seeking HLA-Matched Embryos

    If you are considering PGT-M for HLA matching in Thailand, there are several factors to keep in mind:

    • Genetic counseling: You will need to understand the inheritance pattern of the condition and the probability of having an HLA-matched, unaffected embryo. This is not guaranteed, and the number of suitable embryos may be limited.
    • Legal and ethical aspects: HLA matching for the purpose of creating a “savior sibling” may be regulated in some countries. In Thailand, you should discuss the legal framework with your clinic and possibly seek independent legal advice.
    • Cost: PGT-M for HLA matching is more complex and expensive than standard PGT-A. Costs can vary significantly between clinics, so you should request a detailed breakdown.
    • Time: The entire process, from initial consultation to embryo transfer, may take several months. Be prepared for potential delays.
    • Success rates: The chance of achieving a pregnancy and a live birth depends on many factors, including your age, the number of embryos available, and the quality of the laboratory. No clinic can guarantee a successful outcome.

    Questions to Ask Your Clinic

    Before proceeding, consider asking the following questions:

    • Does your clinic offer PGT-M for HLA matching?
    • What is the experience of your genetics laboratory with HLA typing?
    • How many embryos are typically needed to have a reasonable chance of finding an HLA match?
    • What is the cost of PGT-M for HLA matching, and what does it include?
    • Are there any legal restrictions in Thailand regarding HLA matching?
    • What is the timeline from start to embryo transfer?

    Next Steps

    If you are ready to explore PGT-M for HLA matching in Thailand, here is a simple checklist:

    1. Research fertility clinics that offer PGT-M and have experience with HLA matching.
    2. Schedule a consultation to discuss your specific situation.
    3. Ask for a referral to a genetic counselor who can explain the testing process and implications.
    4. Request a detailed cost estimate and timeline.
    5. Clarify any legal or ethical questions with the clinic or a legal professional.

    For more general information about PGT in Thailand, you can visit our PGT in Thailand page. You may also find our guides helpful, and check our FAQ for common questions.

    Frequently asked questions

    Can PGT-A be used for HLA matching?

    No, PGT-A only screens for chromosomal abnormalities and does not test HLA type. HLA matching requires PGT-M, which is specifically designed to identify tissue compatibility.

    Is PGT-M for HLA matching available in Thailand?

    Yes, some fertility clinics in Thailand offer PGT-M for HLA matching, but availability may vary. You should confirm with the clinic directly and ask about their experience with this specific testing.

    What is the success rate of PGT-M for HLA matching?

    Success rates depend on many factors, including the number of embryos produced, the genetic condition involved, and the laboratory's expertise. There is no guarantee of finding an HLA-matched embryo or achieving a pregnancy. Discuss your individual chances with your clinic.

    Is PGT-M for HLA matching legal in Thailand?

    Legal regulations may apply to HLA matching for medical purposes. It is essential to consult with your clinic and possibly seek legal advice to understand the current legal framework in Thailand.

    Continue your research

    Medical information notice: This article is educational and does not replace individual assessment, diagnosis, genetic counselling or treatment advice from a licensed clinician. Provider services, availability, fees and policies should be verified directly before booking.

  • PGT-A Success Rates in Thailand: What to Expect

    PGT-A Success Rates in Thailand: A Realistic Overview

    If you are exploring IVF in Thailand, you have likely come across PGT-A (preimplantation genetic testing for aneuploidy). This test screens embryos for chromosomal abnormalities before transfer. Many patients ask: “What are the success rates with PGT-A in Thailand?” The short answer is that PGT-A does not guarantee a pregnancy or live birth, but it can help you choose embryos with the best chance of implanting and developing. Success rates vary widely based on your age, embryo quality, and clinic protocols. This guide explains what PGT-A measures, how success is reported, and what factors influence your chances.

    At a Glance: Key Points About PGT-A

    • PGT-A screens embryos for abnormal chromosome numbers (aneuploidy).
    • It does not improve embryo quality; it helps select embryos more likely to be chromosomally normal.
    • Success rates are often reported as live birth per transferred embryo, but this varies by age and embryo quality.
    • PGT-A is not necessary for everyone; your doctor can advise based on your history.
    • In Thailand, many IVF clinics offer PGT-A, but outcomes depend on lab standards and your individual situation.

    What Is PGT-A and How Does It Work?

    PGT-A is a genetic test performed on embryos created through IVF. A few cells are removed from the embryo (usually at the blastocyst stage, around day 5 or 6) and analyzed for chromosomal abnormalities. Embryos with the correct number of chromosomes (euploid) are considered viable for transfer. Those with missing or extra chromosomes (aneuploid) often fail to implant or result in miscarriage.

    This test is different from PGT-M (for single-gene disorders) and PGT-SR (for structural rearrangements). PGT-A focuses on chromosome number, not specific genetic diseases.

    How Are PGT-A Success Rates Measured?

    Success rates can be reported in several ways, and it is important to understand the difference:

    • Live birth per transferred embryo: The most meaningful measure for patients. It tells you the chance that a single transferred embryo results in a live birth.
    • Ongoing pregnancy rate: The percentage of pregnancies that progress past a certain point (e.g., 12 weeks).
    • Clinical pregnancy rate: The presence of a fetal heartbeat on ultrasound.
    • Euploidy rate: The percentage of embryos that are chromosomally normal. This is not a success rate but a laboratory measure.

    When clinics quote “success rates,” ask exactly what they are measuring. A high clinical pregnancy rate may not translate to a live birth.

    Factors That Influence PGT-A Success in Thailand

    Several factors affect your chances of a successful PGT-A cycle:

    Maternal Age

    Age is the strongest predictor of embryo aneuploidy. Women under 35 have a higher proportion of normal embryos, while women over 40 have fewer. Therefore, PGT-A success rates are higher in younger women simply because they are more likely to have at least one euploid embryo for transfer.

    Embryo Quality and Development

    Embryos that reach the blastocyst stage and have good morphology are more likely to be euploid. However, even high-grade embryos can be aneuploid. PGT-A adds genetic information to morphological assessment.

    Laboratory Standards and Biopsy Technique

    The accuracy of PGT-A depends on the laboratory’s experience and the biopsy method. In Thailand, clinics may use different platforms (e.g., next-generation sequencing). Ask about the lab’s accreditation and how many cycles they perform annually.

    Number of Embryos Available

    To benefit from PGT-A, you need a sufficient number of embryos to test. If you produce few embryos, the chance that at least one is euploid decreases.

    Clinic-Specific Protocols

    Each clinic has its own protocols for ovarian stimulation, embryo culture, and transfer. These can affect the number and quality of embryos you produce.

    What Do Published Success Rates Show?

    While specific Thailand-specific published rates are not available in this guide, international studies show that transferring a euploid embryo results in higher implantation and live birth rates per transfer compared to transferring an untested embryo, especially in women of advanced maternal age. However, the overall chance of a live birth per cycle may not be higher because some cycles produce no euploid embryos.

    In Thailand, many clinics report success rates on their websites, but these are not standardized. Always ask for the clinic’s own data, broken down by age group and transfer type.

    Is PGT-A Right for You?

    PGT-A is not for everyone. It is often recommended for:

    • Women over 35
    • Couples with recurrent miscarriage
    • Previous failed IVF cycles
    • Severe male factor infertility

    However, it adds cost and time to the IVF process. Some couples may not need it, especially younger women with no known fertility issues. Discuss your specific situation with a fertility specialist.

    Questions to Ask Your Clinic About PGT-A Success

    When evaluating clinics in Thailand, ask these questions:

    • What is your live birth rate per transferred euploid embryo for my age group?
    • How many PGT-A cycles do you perform per year?
    • What genetic testing platform do you use, and is your lab accredited?
    • How do you handle embryos with no result or mosaic results?
    • What is the cost of PGT-A, and are there additional fees for biopsy or storage?

    Next Steps: Making an Informed Decision

    Before committing to PGT-A in Thailand, take these steps:

    1. Gather your medical history and any previous IVF results.
    2. Consult with a fertility specialist to determine if PGT-A is appropriate.
    3. Research clinics and ask for their success data.
    4. Consider the emotional and financial investment.
    5. Prepare questions for your initial consultation.

    Remember, PGT-A is a tool to help you make informed decisions, not a guarantee. Your doctor can guide you based on your unique circumstances.

    Frequently asked questions

    What is the success rate of PGT-A in Thailand?

    Success rates vary widely depending on maternal age, embryo quality, and clinic protocols. There is no single national rate. Ask your clinic for its live birth rate per transferred euploid embryo, broken down by age group.

    Does PGT-A guarantee a live birth?

    No. PGT-A helps select embryos with the correct number of chromosomes, which increases the chance of implantation and reduces miscarriage risk, but it does not guarantee pregnancy or live birth. Other factors, such as uterine receptivity and embryo quality, also matter.

    Is PGT-A worth the extra cost in Thailand?

    For some patients, especially those over 35 or with recurrent miscarriage, PGT-A may reduce the number of failed transfers and miscarriages. However, it adds significant cost and may not be necessary for everyone. Discuss the potential benefits and limitations with your doctor.

    How long does PGT-A testing take in Thailand?

    PGT-A typically adds about 2-4 weeks to the IVF process because embryos must be biopsied and sent to a lab for analysis. This may require a frozen embryo transfer in a subsequent cycle. Your clinic will provide a specific timeline.

    Continue your research

    Medical information notice: This article is educational and does not replace individual assessment, diagnosis, genetic counselling or treatment advice from a licensed clinician. Provider services, availability, fees and policies should be verified directly before booking.

  • PGT-A vs PGT-M for Single Gene Disorders: What Patients in Thailand Should Know

    PGT-A vs PGT-M: What’s the Difference?

    If you carry a single gene disorder (also called a monogenic condition), you may be exploring preimplantation genetic testing (PGT) as part of your IVF journey. Two common types of PGT are PGT-A and PGT-M. While both involve testing embryos created through IVF, they answer different questions.

    PGT-A (preimplantation genetic testing for aneuploidy) screens embryos for an abnormal number of chromosomes. It is often used to improve the chances of a successful pregnancy, especially for people of advanced maternal age or those with recurrent miscarriage.

    PGT-M (preimplantation genetic testing for monogenic disorders) looks for a specific genetic mutation that causes a particular single gene disorder, such as cystic fibrosis, sickle cell disease, or Huntington’s disease. If you or your partner carry a known mutation, PGT-M can identify embryos that do not inherit the disorder.

    For patients with a known single gene disorder, PGT-M is usually the necessary test. PGT-A alone cannot tell you whether an embryo carries your specific mutation. In some cases, both PGT-A and PGT-M may be performed together, but they serve distinct purposes.

    At a Glance: PGT-A vs PGT-M

    • PGT-A: Checks chromosome number (aneuploidy). Does not test for specific gene mutations.
    • PGT-M: Tests for a specific single gene mutation. Requires prior genetic testing of parents and often other family members.
    • PGT-SR: Tests for structural rearrangements of chromosomes (e.g., translocations). Sometimes relevant if you also have a chromosome issue.
    • Which one?: If you have a known single gene disorder, PGT-M is essential. PGT-A may be added for chromosome screening.

    Why PGT-M Is Necessary for Single Gene Disorders

    Single gene disorders are caused by mutations in a specific gene. PGT-M is designed to detect whether an embryo has inherited that mutation. Without PGT-M, you cannot know if an embryo is affected by the condition you carry.

    PGT-A, on the other hand, only counts chromosomes. An embryo can have a normal number of chromosomes but still carry a disease-causing mutation. Therefore, PGT-A is not a substitute for PGT-M when you have a known monogenic disorder.

    In some situations, your clinic may recommend doing both PGT-A and PGT-M. This is because embryos that are free of the mutation may still have chromosome abnormalities that could affect implantation or lead to miscarriage. Combining both tests can provide more complete information, but it also adds complexity and cost.

    How PGT-M Works

    PGT-M is a multi-step process that begins before you start an IVF cycle. Here is a general overview:

    1. Genetic counseling and testing: You and your partner will meet with a genetic counselor. The specific mutation must be identified through genetic testing of you, your partner, and sometimes other family members.
    2. IVF and embryo biopsy: After eggs are retrieved and fertilized, embryos are grown in the lab for several days. A few cells are then removed from each embryo (biopsy).
    3. Genetic analysis: The biopsied cells are analyzed for the specific mutation. This requires a customized test for your family’s mutation.
    4. Embryo selection: Embryos that do not carry the mutation are considered for transfer.

    Because PGT-M requires a personalized test, it is not a one-size-fits-all procedure. The laboratory needs time to develop and validate the test before your cycle begins.

    PGT-A: What It Can and Cannot Do

    PGT-A is often used to select embryos with the correct number of chromosomes. It can help reduce the risk of miscarriage due to aneuploidy and may improve the efficiency of IVF by avoiding transfer of embryos that are unlikely to implant.

    However, PGT-A does not test for single gene mutations. If you have a known monogenic disorder, PGT-A results will not tell you whether an embryo is affected by that condition. Therefore, PGT-A is not a replacement for PGT-M.

    Some patients may choose to have both PGT-A and PGT-M. This can be beneficial because it provides two layers of information: the specific mutation status and the chromosome status. But it also means more testing, which can increase the time and cost of the IVF cycle.

    PGT-SR: When Chromosome Structure Matters

    PGT-SR (preimplantation genetic testing for structural rearrangements) is used when one or both parents have a chromosomal rearrangement, such as a translocation. This can cause embryos to have missing or extra chromosome segments, leading to miscarriage or birth defects.

    If you have a single gene disorder, PGT-SR is not typically needed unless you also have a known chromosomal rearrangement. Your genetic counselor can help determine if PGT-SR is relevant for your situation.

    Choosing Between PGT-A and PGT-M in Thailand

    If you are considering PGT in Thailand, you will likely work with an IVF clinic that offers genetic testing services. The choice between PGT-A and PGT-M depends on your medical history and genetic status.

    For patients with a known single gene disorder, PGT-M is the primary test. PGT-A may be added if you also want chromosome screening. Some clinics may offer a combined approach, but this is not always necessary.

    When researching clinics in Thailand, ask about their experience with PGT-M for your specific condition. Not all laboratories may have the capability to develop a customized test for every mutation. It is important to confirm that the clinic can handle your case.

    Questions to Ask Your Clinic

    Before deciding on PGT, consider asking your clinic the following questions:

    • Do you offer PGT-M for my specific single gene disorder?
    • How long does it take to develop a personalized PGT-M test?
    • Can you perform PGT-A and PGT-M together on the same embryo biopsy?
    • What is the success rate for embryos that are free of the mutation?
    • What are the limitations of PGT-M? Are there any embryos that may have unclear results?
    • What is the cost of PGT-M, and does it include genetic counseling and test development?

    Next Steps: Your Checklist

    1. Confirm your genetic diagnosis and the specific mutation with a genetic counselor.
    2. Research IVF clinics in Thailand that offer PGT-M for your condition.
    3. Ask about the laboratory’s experience with your type of mutation.
    4. Discuss whether PGT-A is also recommended in your case.
    5. Understand the timeline, including the time needed for test development.
    6. Clarify all costs and what they include.

    PGT is a personal decision. It is not a guarantee of pregnancy or a healthy child, but it can provide valuable information to help you make informed choices. Always consult with your medical team to determine the best approach for your situation.

    Frequently asked questions

    Can PGT-A detect single gene disorders?

    No. PGT-A only checks for an abnormal number of chromosomes. It does not test for specific gene mutations. If you have a known single gene disorder, you need PGT-M to determine whether an embryo carries the mutation.

    Is PGT-M necessary if I have a single gene disorder?

    Yes, if you want to identify embryos that do not carry the specific mutation causing your disorder. PGT-M is the only type of PGT that tests for a particular monogenic condition. PGT-A cannot provide that information.

    Can PGT-A and PGT-M be done together?

    Yes, in many cases both tests can be performed on the same embryo biopsy. This provides information about both the specific mutation and chromosome number. However, not all clinics may offer combined testing, so it is important to ask.

    How long does PGT-M take in Thailand?

    The timeline can vary. PGT-M requires a personalized test to be developed for your family's mutation, which can take several weeks or months. Your clinic can give you a more specific estimate based on your case.

    Continue your research

    Medical information notice: This article is educational and does not replace individual assessment, diagnosis, genetic counselling or treatment advice from a licensed clinician. Provider services, availability, fees and policies should be verified directly before booking.

  • PGT-A Lab Accreditation in Thailand: What to Look For and Where to Start

    When you are researching preimplantation genetic testing for aneuploidy (PGT-A) in Thailand, one of the first questions is often: “Is the lab accredited?” Accreditation matters because it signals that a laboratory follows recognized quality standards, participates in external quality assessments, and is regularly audited. However, there is no single global “PGT-A accreditation.” Instead, you will see a mix of hospital accreditations, laboratory standards, and proficiency testing schemes. This guide explains what those credentials mean, which Bangkok fertility centers currently publish relevant information, and how to compare them fairly.

    At a Glance: What to Look For in a PGT-A Lab

    • Hospital or clinic accreditation: JCI, RTAC, ISO 9001 – these assess overall quality and safety of the facility.
    • Laboratory-specific standards: ISO 15189 (medical laboratories) and ISO 15190 (laboratory safety) are more specific to lab operations.
    • Proficiency testing: CAP (College of American Pathologists) and UK NEQAS (United Kingdom National External Quality Assessment Service) check lab accuracy through external samples.
    • Genetics lab scope: Confirm that the lab actually performs PGT-A (not just IVF) and uses validated methods like next-generation sequencing (NGS).
    • In-house vs. referral: Some centers have their own genetics lab; others send biopsies to an external lab. Ask which applies to you.

    Understanding PGT-A Lab Certifications

    PGT-A involves three steps: embryo biopsy, genetic amplification, and analysis. Each step can be affected by lab quality. Accreditation helps reduce the risk of errors, but it does not guarantee a successful pregnancy or a healthy baby. Here are the main credentials you will encounter in Thailand:

    JCI (Joint Commission International)

    JCI accredits hospitals and clinics worldwide, focusing on patient safety, staff qualifications, and quality improvement. It is a broad organizational accreditation, not a specific test for genetic accuracy.

    RTAC (Reproductive Technology Accreditation Committee)

    RTAC is an Australian accreditation scheme specifically for fertility clinics. It assesses the entire IVF service, including laboratory practices, counseling, and ethical standards. Some Thai centers highlight RTAC as a mark of reproductive-specific quality.

    ISO 9001

    ISO 9001 is a general quality management standard. It shows that a clinic has documented processes and continuous improvement, but it does not directly evaluate medical or laboratory competence.

    ISO 15189 and ISO 15190

    ISO 15189 is the international standard for medical laboratories – it covers technical competence, quality control, and traceability. ISO 15190 addresses laboratory safety. These are more relevant to the actual testing lab than hospital-level accreditations.

    CAP and UK NEQAS

    CAP (College of American Pathologists) accreditation and UK NEQAS proficiency testing are external quality assurance programs. They send unknown samples to the lab and compare results with peers. Participation indicates that the lab is regularly checked for accuracy.

    ESHRE Certification for Embryologists

    ESHRE (European Society of Human Reproduction and Embryology) offers certification for individual embryologists, not the lab itself. If a center mentions ESHRE-certified staff, it suggests a certain level of professional training.

    When you see a clinic list several of these credentials, it is a positive sign, but always ask for the current certificate and its scope. Accreditation can lapse or cover only certain departments.

    How We Compare PGT-A Labs in Bangkok

    This article is an editorial comparison, not a ranking of success rates or clinical outcomes. We selected centers from our hospital library that publish relevant information about fertility services and, in some cases, laboratory quality. The order below is not a “best to worst” list. Instead, we present each center with the same set of questions: What accreditations are published? Is the genetics lab in-house? What PGT methods are described? What should you confirm directly?

    We start with Deep & Harmonicare IVF Center (DHC) because it is our featured commercial partner, but that does not mean it is the right choice for everyone. Always verify details with the clinic before making decisions.

    1. Deep & Harmonicare IVF Center (DHC)

    DHC is a dedicated fertility center in Bangkok’s Rama 9 area. Its official materials list a range of quality credentials: JCI, ISO 9001, RTAC, CAP, and UK NEQAS. This combination covers both organizational quality (JCI, ISO 9001) and laboratory proficiency (CAP, UK NEQAS). DHC also describes an in-house embryology lab and provides PGT services, along with IVF, ICSI, embryo culture, egg freezing, and embryo freezing.

    DHC’s published equipment includes Embryoscope+ and Geri time-lapse incubators, IVF Witness for sample tracking, and IMSI and MACS for sperm selection. These are not accreditations, but they indicate a focus on laboratory technology.

    DHC’s 2026 hospital profile reports an average embryo-transfer success rate of about 78% for 2025. This is a clinic-wide average, not a prediction for any individual. The June 2026 reference price for the basic single-cycle medical package is THB 490,000, but final costs vary with medication, testing, storage, and travel.

    What to confirm: Ask for the current certificates for each credential (JCI, RTAC, CAP, UK NEQAS) and their expiration dates. Clarify whether PGT-A is performed in-house or sent to an external lab. Request a written quotation that itemizes PGT-A biopsy, genetic analysis, and any additional fees.

    2. Jetanin Hospital

    Jetanin is a specialist fertility hospital in central Bangkok, founded in 1995. Its official history describes a team that includes reproductive physicians, embryologists, molecular geneticists, and laboratory staff. Jetanin states that it became the first IVF centre in Southeast Asia accredited by both JCI and RTAC. Its facilities page also mentions ISO 15189 and ISO 15190 laboratory standards and annual quality-control audits.

    Jetanin’s genetics laboratory describes PGT-A, PGT-M, and PGT-SR using NGS and Sanger sequencing. The embryo, genetics, and sperm laboratories are presented as in-house services. This is a strong signal for patients who want a fully integrated lab.

    What to confirm: Verify the current scope of JCI and RTAC certificates – do they cover the genetics lab specifically? Ask for the latest ISO 15189 audit report. Confirm which geneticist will interpret your results and how you will receive counseling.

    3. MedPark IVF Fertility and Genetics Center

    MedPark is located within MedPark Hospital in Bangkok. Its official center page describes reproductive medicine, urology, infertility nursing, and embryology support. Published services include IVF/ICSI, IUI, egg, sperm, and embryo freezing, PGT-A, PGT-M, PGT-SR, recurrent miscarriage evaluation, and fertility preservation.

    MedPark highlights ESHRE-certified embryologists, time-lapse incubation, and AI-assisted embryo assessment. The center does not explicitly list JCI or RTAC on the page we reviewed, but it does mention ESHRE certification for staff. The official page listed an IVF/ICSI package at THB 280,000 when reviewed, but validity and inclusions require written confirmation.

    What to confirm: Ask whether the genetics lab is in-house or outsourced. Request details on the PGT-A platform (e.g., NGS) and the embryologists’ ESHRE certificates. Clarify what the package includes – medication, PGT, freezing, and transfer may be extra.

    4. Bangkok Hospital Fertility Center

    Bangkok Hospital Fertility Center is part of Bangkok Hospital Headquarter. Its official center page describes reproductive endocrinologists, embryologists, an in-house embryology laboratory, and male-factor testing. Published services include IVF, ICSI, PGT-A, egg and embryo freezing, and semen analysis.

    The center does not list specific accreditations on the page we reviewed, but it is part of a large hospital network that may hold JCI or other certifications. The official fly-in packages reviewed in July 2026 list THB 335,000 from stimulation through embryo transfer and THB 456,000 with PGT and freezing for two embryos, valid to 31 December 2026.

    What to confirm: Ask for the hospital’s current accreditations and whether they cover the fertility center’s lab. Confirm if PGT-A is performed in-house or referred. Request a detailed quotation that matches the package inclusions.

    5. Bumrungrad International Hospital

    Bumrungrad is a large multidisciplinary hospital in central Bangkok. Its provider listing describes IVF, ICSI, and reproductive medicine services. The listing names Dr. Phattaraphum Phophong, with training in reproductive medicine and prenatal genetics. Bumrungrad’s integrated setting may be useful if you need other medical specialties, but the fertility team and laboratory details are not fully described in the public profile.

    What to confirm: Ask for the current fertility center accreditations, the embryology lab’s quality certifications, and whether PGT-A is available on-site. Request the names and credentials of the geneticists who would handle your case.

    6. Superior A.R.T. Thailand

    Superior A.R.T. is a specialist assisted-reproduction and genetics center in Bangkok, established in 2007. Its official website emphasizes IVF, ICSI, and PGT pathways. The center does not publish specific accreditations in the profile we reviewed, but it is dedicated to reproductive genetics.

    What to confirm: Ask for the laboratory’s quality certifications (e.g., ISO 15189, CAP, UK NEQAS). Confirm the PGT-A method and whether the lab is in-house. Request a written package boundary that lists what is included and what is not.

    7. Prime Fertility Clinic

    Prime Fertility Clinic is located at Pearl Bangkok. Its provider listing describes IVF, ICSI, embryo freezing, assisted hatching, and international-patient care. The listing names Dr. Poonkiat Punyamitr and reports 19 years of experience. Prime describes JCI Ambulatory Care accreditation, which is a specific JCI program for outpatient clinics.

    What to confirm: Ask whether the JCI accreditation covers the laboratory and PGT services. Confirm if PGT-A is performed on-site or sent to an external lab. Request a written quotation that includes all genetic testing fees.

    Comparison Table: PGT-A Lab Features at a Glance

    Center Published Accreditations PGT-A Services Lab Type Price Information
    DHC JCI, ISO 9001, RTAC, CAP, UK NEQAS PGT (including PGT-A) In-house embryology lab THB 490,000 basic cycle (June 2026)
    Jetanin JCI, RTAC, ISO 15189, ISO 15190 PGT-A, PGT-M, PGT-SR In-house genetics lab Not listed
    MedPark ESHRE-certified embryologists PGT-A, PGT-M, PGT-SR Not specified IVF/ICSI package THB 280,000 (reviewed)
    Bangkok Hospital Not listed PGT-A In-house embryology lab Packages from THB 335,000
    Bumrungrad Not listed IVF, ICSI (PGT not specified) Not specified Not listed
    Superior A.R.T. Not listed PGT pathways Not specified Not listed
    Prime JCI Ambulatory Care IVF, ICSI (PGT not specified) Not specified Not listed

    Note: “Not listed” means the information is not in the current hospital library profile. Always ask the clinic for current certificates and written quotations.

    Questions to Ask Any PGT-A Lab in Thailand

    • Which accreditations do you hold, and can you share the current certificates with expiration dates?
    • Is the PGT-A genetic analysis performed in your own laboratory or sent to an external facility?
    • What genetic testing platform do you use (e.g., NGS, array CGH)?
    • How many embryos have you biopsied and analyzed in the last year?
    • What is your policy on embryo re-biopsy or inconclusive results?
    • Who interprets the genetic results, and will I receive genetic counseling?
    • What is the total cost for PGT-A, including biopsy, analysis, and any additional storage or shipping fees?

    Next Steps: Your PGT-A Lab Checklist

    1. Shortlist 2–3 centers that match your medical and travel needs.
    2. Request written confirmation of accreditations and laboratory scope.
    3. Ask for a detailed quotation that separates IVF, PGT-A, medication, and storage costs.
    4. Clarify whether the center has experience with your specific situation (e.g., advanced maternal age, recurrent miscarriage).
    5. Arrange a consultation to discuss your results and the lab’s quality controls.

    Choosing a PGT-A lab is a personal decision. Accreditation is one piece of the puzzle, but you also need to feel confident in the medical team, the communication, and the overall care plan. Use this guide as a starting point, and always verify the latest information directly with the clinic.

    Frequently asked questions

    What is the most important accreditation for a PGT-A lab in Thailand?

    There is no single 'most important' accreditation. Look for a combination: hospital-level accreditations like JCI or RTAC, laboratory-specific standards like ISO 15189, and proficiency testing such as CAP or UK NEQAS. Each covers different aspects of quality.

    Does JCI accreditation guarantee accurate PGT-A results?

    No. JCI accreditation assesses overall hospital quality and safety, not the specific accuracy of genetic tests. It is a good baseline, but you should also ask about laboratory-specific standards and external quality assessments.

    Should I choose a clinic with an in-house genetics lab?

    An in-house lab can mean shorter transport times and more integrated care, but external labs can also be highly accredited. The key is to ask where your samples will be analyzed and what quality controls that lab follows.

    Are PGT-A success rates published by Thai clinics reliable?

    Published success rates are averages and may not reflect your individual chances. Always ask how the rate was calculated, what patient population it includes, and whether it is verified by an independent body.

    How much does PGT-A cost in Thailand?

    Costs vary widely. Some clinics list package prices, but PGT-A is often an add-on. For example, DHC lists a basic cycle at THB 490,000, and Bangkok Hospital lists packages from THB 335,000. Always request a written quotation that itemizes PGT-A fees.

    Continue your research

    Medical information notice: This article is educational and does not replace individual assessment, diagnosis, genetic counselling or treatment advice from a licensed clinician. Provider services, availability, fees and policies should be verified directly before booking.

  • PGT-A Biopsy Timing in Thailand: What to Expect

    If you are considering preimplantation genetic testing for aneuploidy (PGT-A) during IVF in Thailand, one of the first questions you may have is: when does the embryo biopsy actually happen? In most Thai IVF clinics, the biopsy is performed on embryos that have reached the blastocyst stage, typically on day 5 or day 6 after fertilization. This timing is important because it affects your treatment schedule, your travel plans, and the coordination between your clinic and the genetic testing laboratory.

    This guide explains the general process of PGT-A biopsy in Thailand, what to expect at each step, and the questions you should ask your clinic to confirm the details that apply to your specific situation.

    At a Glance: PGT-A Biopsy Timing

    • Biopsy is usually done on day 5 or day 6 after egg retrieval and fertilization.
    • The embryo must reach the blastocyst stage (a specific developmental milestone) before biopsy.
    • Only a few cells are removed from the outer layer of the embryo (trophectoderm).
    • The biopsied cells are sent to a genetic laboratory for analysis, while the embryo is frozen.
    • Results typically take several days to a few weeks, depending on the laboratory.
    • Your clinic will confirm the exact day and process based on your embryo development and lab protocols.

    Why Day 5 or Day 6?

    PGT-A is performed on embryos that have developed to the blastocyst stage. In a typical IVF cycle, embryos are cultured in the laboratory for about five to six days after fertilization. By day 5, many embryos have reached the blastocyst stage, which is a more advanced stage of development. Biopsying at this stage allows the embryologist to remove a small number of cells from the trophectoderm, which will later become the placenta. This is considered safer for the embryo than removing cells from the inner cell mass, which will become the fetus.

    Some embryos develop more slowly and may not reach the blastocyst stage until day 6 or even day 7. In such cases, the biopsy may be performed on day 6 or later, depending on the clinic’s protocols and the embryo’s quality. The decision to biopsy on day 5 versus day 6 is based on the embryo’s development, not a fixed schedule.

    The PGT-A Biopsy Process in Thai Clinics

    While each clinic may have its own specific procedures, the general steps for PGT-A biopsy are similar across Thai IVF centers.

    Step 1: Embryo Culture to Blastocyst Stage

    After egg retrieval and fertilization, embryos are cultured in a specialized incubator. The embryologist monitors their development daily. By day 5 or 6, embryos that have reached the blastocyst stage are eligible for biopsy.

    Step 2: Embryo Biopsy

    On the day of biopsy, the embryologist uses a laser or a thin needle to create a small opening in the zona pellucida (the outer shell of the embryo). Then, a few cells from the trophectoderm are gently aspirated. This process is delicate and requires expertise to minimize any potential impact on the embryo.

    Step 3: Genetic Analysis

    The biopsied cells are placed in a tube and sent to a genetic testing laboratory. The laboratory analyzes the DNA to check for chromosomal abnormalities (aneuploidy). The embryo itself is frozen (vitrified) while waiting for the results.

    Step 4: Embryo Transfer

    Once the results are available, your doctor will discuss which embryos are chromosomally normal (euploid) and suitable for transfer. A frozen embryo transfer (FET) is typically scheduled in a subsequent cycle, after your uterus is prepared.

    How Biopsy Timing Affects Your IVF Timeline in Thailand

    If you are traveling to Thailand for IVF with PGT-A, understanding the timing is crucial for planning your stay. Here are the key points to consider:

    • Egg retrieval to biopsy: The biopsy occurs about 5 to 6 days after your egg retrieval. You will need to be in Thailand for at least this period.
    • Freezing and waiting: After the biopsy, the embryos are frozen. You may choose to return home while waiting for the genetic results, as the transfer will happen in a later cycle.
    • Results timeline: The time it takes to receive PGT-A results can vary. Some laboratories may provide results within a few days, while others may take longer. Your clinic will give you an estimated timeline.
    • Travel planning: Many international patients plan to stay in Thailand for the initial IVF cycle (including egg retrieval and biopsy) and then return for the frozen embryo transfer after results are available. This may involve two trips, but some patients choose to stay for the entire process. Discuss your travel plans with your clinic to understand the recommended schedule.

    What to Ask Your Clinic About PGT-A Biopsy

    Because every clinic and patient situation is unique, it is essential to confirm the following details directly with your chosen clinic:

    • On which day (day 5, day 6, or later) does your clinic typically perform the biopsy?
    • What is the estimated time for receiving PGT-A results?
    • How many embryos are usually biopsied in a cycle?
    • What is the experience of the embryology team with PGT-A biopsies?
    • How does the clinic coordinate with the genetic testing laboratory?
    • What is the recommended timeline for international patients, including travel and rest periods?
    • Are there any specific instructions for the days leading up to the biopsy?

    Next Steps: Planning Your PGT-A Cycle in Thailand

    If you are considering PGT-A in Thailand, here is a simple checklist to help you move forward:

    1. Research IVF clinics in Thailand that offer PGT-A and have experience with international patients.
    2. Schedule a consultation to discuss your medical history and whether PGT-A is appropriate for you.
    3. Ask about the clinic’s biopsy timing, laboratory accreditation, and result turnaround times.
    4. Plan your travel and accommodation, keeping in mind the need to stay for at least the egg retrieval and biopsy.
    5. Confirm the costs involved, including the biopsy procedure, genetic testing, and any additional laboratory fees.
    6. Prepare for the possibility of a second trip for the frozen embryo transfer.

    Remember, the information in this guide is general. Your doctor will provide personalized advice based on your specific circumstances.

    Frequently asked questions

    Is PGT-A biopsy always done on day 5?

    No, not always. While day 5 is common, some embryos develop more slowly and may be biopsied on day 6 or later. The exact day depends on when the embryo reaches the blastocyst stage and the clinic's protocols.

    How long does it take to get PGT-A results in Thailand?

    The time can vary by laboratory. Some clinics may provide results within a few days, while others may take longer. Your clinic will give you an estimated timeline based on their lab arrangements.

    Can I go home after the biopsy and return later for the transfer?

    Yes, many international patients do this. After the biopsy, embryos are frozen, and you can return home while waiting for results. The transfer is usually done in a later cycle, so you may need to plan a second trip to Thailand.

    Does the biopsy hurt the embryo?

    The biopsy is a delicate procedure performed by experienced embryologists. It removes only a few cells from the outer layer of the embryo, and studies suggest it does not significantly impact the embryo's viability. However, the skill of the embryology team is important.

    Continue your research

    Medical information notice: This article is educational and does not replace individual assessment, diagnosis, genetic counselling or treatment advice from a licensed clinician. Provider services, availability, fees and policies should be verified directly before booking.

  • PGT-A for Advanced Maternal Age in Thailand: A Guide for Women Over 40

    If you are a woman over 40 considering IVF in Thailand, you may have heard about PGT-A (preimplantation genetic testing for aneuploidy). This test screens embryos for abnormal numbers of chromosomes, which are more common with advancing maternal age. PGT-A can help your doctor select embryos with the typical chromosome count for transfer, potentially reducing the risk of miscarriage and failed implantation. However, it is not a guarantee of pregnancy or a healthy baby, and it is not necessary for everyone. This guide explains what PGT-A is, how it may benefit women over 40, its limitations, and the questions you should ask before deciding.

    At a Glance: PGT-A for Women Over 40

    • What it does: Screens embryos for an abnormal number of chromosomes (aneuploidy).
    • Who it may help: Women over 40, where the chance of aneuploidy is higher.
    • Potential benefits: May reduce miscarriage risk and improve the efficiency of IVF by selecting embryos with the typical chromosome count.
    • Limitations: Does not guarantee a live birth, cannot detect all genetic or chromosomal issues, and may damage embryos in rare cases.
    • Not for everyone: Some women may not produce enough embryos to make testing worthwhile.

    Understanding PGT-A

    PGT-A is a genetic test performed on embryos created through IVF. After fertilization, embryos are grown in the laboratory for several days, typically until they reach the blastocyst stage. A few cells are then removed from each embryo and analyzed for chromosomal abnormalities. Embryos with the expected number of chromosomes (euploid) are considered suitable for transfer, while those with missing or extra chromosomes (aneuploid) are usually not transferred because they are less likely to implant or may lead to miscarriage.

    Chromosomal abnormalities are a major cause of early pregnancy loss and failed implantation. The risk of aneuploidy increases with maternal age, particularly after 35 and more sharply after 40. For this reason, PGT-A is often discussed with women of advanced maternal age.

    How PGT-A Can Benefit Women Over 40

    For women over 40, the main potential benefits of PGT-A include:

    • Reduced risk of miscarriage: By selecting embryos with the typical chromosome count, PGT-A may lower the chance of miscarriage due to aneuploidy.
    • Improved IVF efficiency: Transferring a euploid embryo may increase the chance of implantation per transfer, potentially reducing the number of cycles needed.
    • Better embryo selection: When multiple embryos are available, PGT-A can help prioritize which embryo to transfer first.

    However, it is important to note that PGT-A does not improve the quality of your eggs or embryos. It only helps identify which embryos are more likely to be chromosomally normal. The overall success of IVF still depends on many factors, including the number and quality of embryos you produce.

    Limitations and Considerations

    PGT-A is not a guarantee of a successful pregnancy or a healthy baby. Here are some limitations to keep in mind:

    • Not all chromosomal abnormalities are detected: PGT-A screens for common aneuploidies, but it does not detect all genetic conditions or structural chromosomal rearrangements.
    • Mosaicism: Some embryos may have a mix of normal and abnormal cells. The clinical significance of mosaicism is still being studied, and such embryos may or may not be suitable for transfer.
    • Embryo damage: The biopsy procedure carries a small risk of damaging the embryo, although this is rare in experienced laboratories.
    • No guarantee of live birth: Even a euploid embryo may not implant or may result in miscarriage for other reasons.
    • Cost and time: PGT-A adds to the cost of IVF and requires the embryo to be frozen while testing is completed, which may delay transfer.

    Additionally, PGT-A is not recommended for all women. If you produce very few embryos, the benefit of testing may be limited, as you may have no euploid embryo to transfer. Your doctor can help you weigh the potential benefits and risks based on your individual situation.

    PGT-A in Thailand: What to Consider

    Thailand has become a popular destination for IVF and genetic testing, including PGT-A. Many clinics offer advanced reproductive technologies, but regulations and practices can vary. When considering PGT-A in Thailand, you should:

    • Choose a reputable clinic: Look for clinics with experience in PGT-A and a good track record. You can ask about their laboratory accreditation and success rates.
    • Understand the legal and ethical framework: Thailand has laws and guidelines regarding assisted reproduction and genetic testing. Your clinic should explain what is permitted and any restrictions.
    • Ask about the testing process: Inquire about the laboratory that will perform the genetic analysis, the type of testing used, and how long results take.
    • Consider the total cost: PGT-A adds to the cost of IVF. Ask for a detailed breakdown of fees, including the biopsy, genetic analysis, and any additional storage or shipping costs.

    Because regulations and practices can change, it is essential to verify current information directly with your chosen clinic and, if necessary, with relevant Thai authorities.

    Questions to Ask Your Clinic

    Before deciding on PGT-A, consider asking your clinic the following questions:

    • What is your experience with PGT-A in women over 40?
    • What is the likelihood that I will have at least one embryo suitable for transfer after testing?
    • How many embryos do you typically need before recommending PGT-A?
    • What is the cost of PGT-A, and what does it include?
    • How long will it take to get results, and how will this affect my treatment timeline?
    • What are the risks of the biopsy procedure?
    • How do you handle mosaic embryos?
    • What are my options if no embryos are suitable for transfer?

    Next Steps: Making Your Decision

    Deciding whether to use PGT-A is personal and should be based on your medical history, the number of embryos you produce, and your goals. Here is a simple checklist to guide you:

    1. Consult with a fertility specialist: Discuss your age, ovarian reserve, and any previous pregnancy or IVF outcomes.
    2. Understand your embryo potential: Ask about the expected number of eggs and embryos based on your AMH, FSH, and antral follicle count.
    3. Learn about PGT-A: Read reliable information and ask your clinic for details about their testing process.
    4. Consider the costs and benefits: Weigh the additional cost of PGT-A against the potential reduction in miscarriage risk and time to pregnancy.
    5. Make an informed choice: Decide together with your doctor whether PGT-A is right for you.

    Remember, PGT-A is a tool to help you make more informed decisions about which embryos to transfer. It does not guarantee a successful outcome, but for many women over 40, it can provide valuable information.

    For more information, explore our PGT in Thailand overview, read our guides, or check our FAQ section.

    Frequently asked questions

    Is PGT-A worth it for women over 40?

    PGT-A can be beneficial for women over 40 because it screens embryos for chromosomal abnormalities, which are more common at this age. By selecting embryos with the typical chromosome count, PGT-A may reduce the risk of miscarriage and improve the efficiency of IVF. However, it is not a guarantee of success, and the decision should be based on your individual circumstances, including the number of embryos you produce and your overall health.

    What is the success rate of PGT-A in Thailand for women over 40?

    Success rates for PGT-A vary widely depending on the clinic, the woman's age, and the number of embryos available. There is no single success rate that applies to all cases. It is important to ask your clinic for their specific data, but remember that even with PGT-A, a live birth is not guaranteed.

    Does PGT-A guarantee a healthy baby?

    No, PGT-A does not guarantee a healthy baby. It screens for common chromosomal abnormalities, but it cannot detect all genetic conditions, and there are other factors that can affect pregnancy and child health. PGT-A is a screening tool, not a guarantee.

    What is the difference between PGT-A and PGT-M?

    PGT-A (preimplantation genetic testing for aneuploidy) screens embryos for abnormal numbers of chromosomes, which are more common with advanced maternal age. PGT-M (preimplantation genetic testing for monogenic disorders) is used to detect specific single-gene diseases, such as cystic fibrosis or sickle cell anemia, when one or both parents carry a known genetic mutation. They are different tests used for different purposes.

    Are there any risks of PGT-A to the embryo?

    The biopsy procedure used in PGT-A involves removing a few cells from the embryo. This carries a small risk of damaging the embryo, although it is rare in experienced laboratories. The long-term effects of embryo biopsy are still being studied, but current evidence suggests that the risk is low.

    Continue your research

    Medical information notice: This article is educational and does not replace individual assessment, diagnosis, genetic counselling or treatment advice from a licensed clinician. Provider services, availability, fees and policies should be verified directly before booking.

  • PGT-A for Recurrent Miscarriage in Thailand: What to Consider

    Recurrent miscarriage—often defined as two or more pregnancy losses—can be emotionally and physically exhausting. When you are exploring next steps, you may hear about preimplantation genetic testing for aneuploidy (PGT-A). PGT-A screens embryos created through IVF for abnormal numbers of chromosomes, which are a common cause of early pregnancy loss. But is PGT-A right for everyone with recurrent miscarriage? Not necessarily. This guide explains what PGT-A can and cannot do, how it fits into a broader evaluation, and what to consider if you are looking at clinics in Thailand.

    At a glance: PGT-A and recurrent miscarriage

    • What PGT-A does: It screens embryos for chromosomal abnormalities (aneuploidy) before transfer.
    • Who may consider it: People with recurrent miscarriage, especially when other causes have been ruled out or when maternal age is advanced.
    • What it does not do: It does not guarantee a pregnancy or a live birth, and it does not test for all genetic conditions.
    • What to do first: A thorough medical evaluation for recurrent miscarriage is essential before deciding on PGT-A.

    Understanding recurrent miscarriage

    Recurrent pregnancy loss (RPL) is typically defined as two or more consecutive miscarriages. It affects a small percentage of couples trying to conceive. Causes can include chromosomal abnormalities in the embryo, uterine structural issues, hormonal or immune factors, blood clotting disorders, and lifestyle influences. In many cases, no clear cause is found.

    Because chromosomal abnormalities in embryos are a leading cause of early miscarriage, PGT-A has been proposed as a way to select embryos with the expected number of chromosomes, potentially reducing the risk of another loss. However, PGT-A is not a first-line test for everyone. Your doctor will usually recommend a full evaluation first, which may include blood tests, imaging of the uterus, and genetic testing of the parents.

    What is PGT-A and how does it work?

    PGT-A is a technique used during in vitro fertilization (IVF). After eggs are fertilized to create embryos, a small number of cells are removed from each embryo (usually at the blastocyst stage, around day 5 or 6 of development). These cells are then analyzed for chromosomal abnormalities. Embryos with the expected number of chromosomes (euploid) are considered suitable for transfer, while those with missing or extra chromosomes (aneuploid) are typically not transferred.

    It is important to understand that PGT-A is a screening test, not a diagnostic test. It looks for common chromosomal abnormalities but cannot detect all genetic problems. Also, the biopsy and testing process is not perfect; there is a small risk of error, and some embryos may be mosaic (containing both normal and abnormal cells).

    Can PGT-A help with recurrent miscarriage?

    The answer depends on the cause of your miscarriages. If the losses are due to chromosomal abnormalities in the embryo, PGT-A may help by identifying embryos that are less likely to miscarry. However, if the cause is uterine, hormonal, or immune-related, PGT-A will not address that issue.

    Research on PGT-A for recurrent miscarriage has shown mixed results. Some studies suggest that PGT-A may reduce the miscarriage rate in certain groups, especially women over 35, but it does not necessarily improve the overall chance of a live birth per IVF cycle. Other studies have not found a clear benefit for all women with recurrent pregnancy loss. This is why PGT-A is not universally recommended for RPL; it is a decision to make with your doctor based on your specific history and test results.

    What Thai clinics offer for PGT-A

    Thailand has many fertility clinics that offer IVF and preimplantation genetic testing, including PGT-A. If you are considering treatment in Thailand, you will find that clinics typically provide a range of services, such as:

    • Initial consultations and fertility assessments
    • IVF with PGT-A (often as part of a package)
    • Genetic counseling before and after testing
    • Embryo biopsy and genetic analysis (often done in collaboration with an accredited laboratory)

    However, the availability and specifics of PGT-A can vary between clinics. Some clinics may offer PGT-A as a standard option, while others may recommend it only in certain situations. It is essential to ask about the clinic’s experience with PGT-A for recurrent miscarriage, the laboratory they use, and their success rates—though keep in mind that success rates are not always directly comparable.

    Questions to ask a Thai clinic about PGT-A

    Before you decide on a clinic, consider asking these questions:

    • What is your experience with PGT-A for patients who have had recurrent miscarriages?
    • Which genetic laboratory do you use, and are they accredited?
    • What is the biopsy technique, and how many cells are removed?
    • How do you handle mosaic embryos or inconclusive results?
    • What is the cost of PGT-A in addition to the IVF cycle?
    • Do you offer genetic counseling to help interpret results?
    • What are the next steps if no euploid embryos are available?

    Alternatives and complementary tests

    PGT-A is not the only option. Depending on your situation, your doctor may suggest:

    • Preimplantation genetic testing for monogenic disorders (PGT-M) – if you or your partner carry a specific genetic condition.
    • Preimplantation genetic testing for structural rearrangements (PGT-SR) – if you or your partner have a chromosomal rearrangement, such as a translocation.
    • Karyotyping of both partners – to check for balanced translocations that may not affect health but can cause miscarriages.
    • Uterine evaluation – such as hysteroscopy or saline infusion sonography to check for structural issues.
    • Immune testing and treatment – if an immune cause is suspected.

    Your doctor will help you decide which tests are appropriate based on your history.

    Limitations and risks of PGT-A

    It is crucial to have realistic expectations. PGT-A has limitations:

    • It does not guarantee a successful pregnancy or live birth.
    • It cannot detect all genetic abnormalities, such as those caused by small deletions or duplications.
    • There is a small risk that the biopsy could damage the embryo, though this is rare.
    • Testing may result in no embryos suitable for transfer, which can be emotionally difficult.
    • PGT-A adds significant cost to an IVF cycle.

    Also, PGT-A is not recommended for everyone. For younger women without a history of miscarriage, PGT-A may not improve live birth rates and could lead to unnecessary discard of embryos that might have self-corrected.

    Next steps: making a decision

    If you are considering PGT-A for recurrent miscarriage in Thailand, here is a step-by-step approach:

    1. Complete a full RPL evaluation – work with a reproductive specialist to rule out other causes.
    2. Discuss your specific history – share your age, number of losses, and any previous test results.
    3. Ask about PGT-A’s potential benefit for you – your doctor can explain the evidence in your context.
    4. Research clinics in Thailand – look for clinics with experience in PGT-A and genetic counseling.
    5. Clarify costs and logistics – ask about the full cost of IVF with PGT-A, including medications, biopsy, and analysis.
    6. Consider genetic counseling – before and after testing to understand your results and options.

    Remember, PGT-A is a tool, not a promise. It can provide valuable information to help you and your doctor make decisions, but it is not a guarantee of a healthy baby. Take your time, ask questions, and choose a clinic that supports you with clear communication and realistic guidance.

    Frequently asked questions

    Is PGT-A recommended for all women with recurrent miscarriage?

    No. PGT-A is not recommended for everyone. It may be considered when chromosomal abnormalities are suspected as a cause, especially in women over 35 or after a full evaluation has ruled out other factors. Your doctor will assess your individual history.

    Does PGT-A guarantee a live birth?

    No. PGT-A can reduce the risk of miscarriage due to chromosomal abnormalities, but it does not guarantee a pregnancy or a live birth. Other factors, such as uterine health and embryo implantation, also play a role.

    What is the difference between PGT-A and PGT-M?

    PGT-A screens embryos for abnormal numbers of chromosomes (aneuploidy). PGT-M tests for specific genetic disorders that the parents are known to carry. They are used for different purposes and can be done together in some cases.

    How much does PGT-A cost in Thailand?

    The cost of PGT-A in Thailand varies by clinic and may be included in an IVF package or added separately. It is important to ask for a detailed breakdown of costs, including the biopsy, genetic analysis, and any additional fees.

    What happens if no normal embryos are available after PGT-A?

    If no euploid embryos are available, your doctor will discuss options such as repeating an IVF cycle, using donor eggs, or considering other treatments. This is an emotionally challenging outcome, and genetic counseling can help you understand your choices.

    Continue your research

    Medical information notice: This article is educational and does not replace individual assessment, diagnosis, genetic counselling or treatment advice from a licensed clinician. Provider services, availability, fees and policies should be verified directly before booking.

  • PGT-A vs PGT-M in Thailand: What’s the Difference?

    PGT-A vs PGT-M: Understanding the Basics

    If you are exploring IVF in Thailand, you may come across two common genetic tests: PGT-A and PGT-M. Both are performed on embryos before transfer, but they answer different questions. PGT-A (Preimplantation Genetic Testing for Aneuploidy) checks for the correct number of chromosomes, while PGT-M (Preimplantation Genetic Testing for Monogenic disorders) looks for specific inherited genetic conditions. This guide explains the difference to help you discuss options with your fertility team.

    At a Glance: PGT-A vs PGT-M

    • PGT-A: Screens embryos for chromosomal abnormalities (aneuploidy).
    • PGT-M: Tests for a specific genetic disorder that runs in the family.
    • Purpose: PGT-A aims to improve IVF success by selecting chromosomally normal embryos; PGT-M aims to avoid passing on a known genetic condition.
    • Who it’s for: PGT-A is often considered for women of advanced maternal age or those with recurrent miscarriage; PGT-M is for couples with a known monogenic disorder.
    • Method: Both require a biopsy of a few cells from the embryo, usually on day 5 or 6.

    What Is PGT-A?

    PGT-A, previously known as preimplantation genetic screening (PGS), checks embryos for an abnormal number of chromosomes. Humans typically have 46 chromosomes. An extra or missing chromosome is called aneuploidy. Many aneuploid embryos fail to implant or result in miscarriage. PGT-A can identify which embryos have the correct number of chromosomes, potentially helping your doctor choose the embryo most likely to lead to a successful pregnancy.

    PGT-A is often recommended for:

    • Women over 35, as the risk of aneuploidy increases with age.
    • Couples who have experienced recurrent pregnancy loss.
    • Couples with previous failed IVF cycles.
    • Couples who want to reduce the risk of miscarriage due to chromosomal abnormalities.

    It is important to note that PGT-A does not guarantee a pregnancy or a healthy baby. It only screens for chromosomal number abnormalities, not all genetic conditions.

    What Is PGT-M?

    PGT-M is used when one or both partners carry a specific genetic mutation that could cause a monogenic disorder, such as cystic fibrosis, sickle cell anemia, or Huntington’s disease. The test identifies embryos that have inherited the mutation, allowing the transfer of embryos free from that particular condition.

    PGT-M is typically recommended for:

    • Couples with a known genetic disorder in their family.
    • Couples who are carriers of an autosomal recessive or X-linked condition.
    • Couples who have had a child with a genetic disorder and wish to avoid passing it on.

    PGT-M requires prior genetic testing of the parents to identify the specific mutation. The test is highly specific and does not screen for other chromosomal abnormalities unless combined with PGT-A.

    Key Differences Between PGT-A and PGT-M

    Aspect PGT-A PGT-M
    Purpose Checks for chromosomal number abnormalities Checks for a specific genetic mutation
    Who it’s for General IVF patients, especially those with age-related risks Couples with a known genetic disorder
    Method Biopsy of embryo cells, then analysis of chromosomes Biopsy of embryo cells, then analysis for specific mutation
    Result Identifies embryos with normal chromosome number Identifies embryos without the specific mutation
    Limitations Does not detect all genetic disorders Does not detect chromosomal abnormalities unless combined with PGT-A

    Can PGT-A and PGT-M Be Combined?

    Yes, in some cases, PGT-A and PGT-M can be performed together on the same embryo biopsy. This is sometimes called PGT-A+PGT-M or comprehensive PGT. Combining them allows you to screen for both chromosomal abnormalities and a specific genetic mutation. However, this may increase the cost and complexity of the testing. Your fertility clinic can advise whether combined testing is appropriate for your situation.

    How Are PGT-A and PGT-M Performed?

    Both tests follow a similar process:

    1. Ovarian stimulation and egg retrieval: Eggs are collected and fertilized with sperm in the lab.
    2. Embryo culture: Embryos are grown to the blastocyst stage, usually by day 5 or 6.
    3. Biopsy: A few cells are removed from the outer layer of the embryo (trophectoderm).
    4. Genetic analysis: The cells are sent to a genetics lab for analysis.
    5. Embryo transfer: A healthy embryo is selected for transfer, usually in a subsequent cycle.

    The biopsy is performed by an embryologist, and the analysis is done in a specialized laboratory. The time required for results may vary, so ask your clinic about the expected timeline.

    When Is Each Test Recommended?

    Your doctor may recommend PGT-A if you have no known genetic disorder but want to reduce the risk of chromosomal abnormalities. PGT-M is recommended when there is a specific genetic condition in your family. In some cases, both tests may be suggested, especially if you are of advanced maternal age and also carry a genetic mutation.

    It is essential to have genetic counseling before undergoing PGT-M to understand the implications of the results and the limitations of the test.

    Questions to Ask Your Clinic

    When considering PGT-A or PGT-M in Thailand, ask your fertility clinic:

    • Which genetic tests do you offer, and what is the difference in your lab?
    • How many embryos typically reach the biopsy stage?
    • How long does it take to get results?
    • What are the risks of embryo biopsy?
    • What is the cost of PGT-A and PGT-M, and are they covered by any packages?
    • Do you have genetic counseling available?

    Next Steps

    If you are deciding between PGT-A and PGT-M, start by discussing your medical history and family history with a fertility specialist. They can help you determine which test, if any, is appropriate. You may also want to consult a genetic counselor to understand the implications of testing.

    For more information, explore our PGT in Thailand guide, or visit our guides section. If you have specific questions, check our FAQ page.

    Frequently asked questions

    What is the main difference between PGT-A and PGT-M?

    PGT-A screens embryos for chromosomal abnormalities (aneuploidy), while PGT-M tests for a specific inherited genetic mutation. PGT-A is often used to improve IVF success rates, whereas PGT-M is used to avoid passing on a known genetic disorder.

    Can PGT-A and PGT-M be done together?

    Yes, in some cases, both tests can be performed on the same embryo biopsy. This allows screening for both chromosomal abnormalities and a specific genetic mutation. However, not all clinics may offer combined testing, and it may increase the cost.

    Who should consider PGT-A?

    PGT-A is often considered for women of advanced maternal age, couples with recurrent pregnancy loss, or those with previous failed IVF cycles. It may also be used to reduce the risk of miscarriage due to chromosomal abnormalities.

    Who should consider PGT-M?

    PGT-M is recommended for couples who are carriers of a specific genetic disorder, have a family history of a monogenic condition, or have had a child with such a condition. Genetic counseling is essential before undergoing PGT-M.

    Are PGT-A and PGT-M available in Thailand?

    Yes, many fertility clinics in Thailand offer PGT-A and PGT-M. However, the availability and specific protocols may vary. It is important to confirm with your chosen clinic about their genetic testing services and any associated requirements.

    Continue your research

    Medical information notice: This article is educational and does not replace individual assessment, diagnosis, genetic counselling or treatment advice from a licensed clinician. Provider services, availability, fees and policies should be verified directly before booking.