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  • Understanding PGT-A Accuracy in Thailand: What Patients Should Know

    PGT-A (preimplantation genetic testing for aneuploidy) is a screening method used during IVF to check embryos for an abnormal number of chromosomes. Many patients in Thailand consider PGT-A to increase the chance of a successful pregnancy, especially after repeated implantation failure or at an older maternal age. However, PGT-A is not a guarantee of a healthy baby, and its accuracy depends on several factors. This guide explains what PGT-A can and cannot tell you, how results are interpreted, and what to consider when choosing PGT-A in Thailand.

    What Is PGT-A and How Does It Work?

    PGT-A is a test performed on embryos created through IVF. A few cells are removed from the embryo (usually from the trophectoderm, which becomes the placenta) and analyzed for chromosomal abnormalities. The goal is to identify embryos with the correct number of chromosomes (euploid) versus those with missing or extra chromosomes (aneuploid). Transferring a euploid embryo may reduce the risk of miscarriage and increase the chance of implantation, but it does not guarantee pregnancy or a healthy child.

    How Accurate Is PGT-A?

    PGT-A is highly accurate in detecting chromosomal abnormalities in the sampled cells, but it is not 100% perfect. The accuracy can be affected by:

    • Mosaicism: Embryos may have a mix of normal and abnormal cells. A biopsy may not capture the true chromosomal status of the entire embryo.
    • Technical limitations: The testing method (e.g., next-generation sequencing) has a small error rate.
    • Embryo self-correction: Some embryos with abnormal cells may self-correct during development, leading to a false positive result (embryo labeled abnormal but could have developed normally).

    In Thailand, as elsewhere, the accuracy of PGT-A depends on the laboratory’s quality, the biopsy technique, and the genetic testing platform used. However, no specific accuracy rates can be provided without official data from Thai clinics.

    What Do PGT-A Results Mean?

    PGT-A results are typically reported as:

    • Euploid: Normal chromosome number – suitable for transfer.
    • Aneuploid: Abnormal chromosome number – generally not recommended for transfer.
    • Mosaic: Mixed cell population – may be considered for transfer in some cases, but with caution.
    • No result: The test failed to produce a result – may require re-biopsy or additional testing.

    It is important to understand that PGT-A does not test for all genetic disorders. It only screens for chromosomal abnormalities, not single-gene disorders (which require PGT-M) or structural rearrangements (which require PGT-SR).

    Factors That Can Affect PGT-A Accuracy in Thai Labs

    Several factors can influence the reliability of PGT-A results in Thailand:

    • Embryo biopsy timing: Biopsy is usually done on day 5 or 6 (blastocyst stage). Biopsy too early or too late may affect accuracy.
    • Number of cells biopsied: A sufficient number of cells is needed for reliable analysis.
    • Laboratory quality: The experience of the embryology team and the laboratory’s accreditation play a role.
    • Genetic testing platform: Different platforms have varying levels of sensitivity and specificity.
    • Embryo quality: Poor-quality embryos may have higher rates of mosaicism, affecting interpretation.

    When considering PGT-A in Thailand, ask the clinic about their laboratory protocols, quality control measures, and how they handle inconclusive or mosaic results.

    PGT-A vs. Other Genetic Tests

    PGT-A is often confused with other types of preimplantation genetic testing:

    • PGT-M (monogenic disorders): Tests for specific single-gene diseases, such as cystic fibrosis or thalassemia.
    • PGT-SR (structural rearrangements): Tests for chromosomal structural abnormalities, such as translocations.

    These tests are different from PGT-A and are used for different medical indications. Some patients may need more than one type of testing.

    Who Might Consider PGT-A?

    PGT-A is not recommended for everyone. It may be considered in cases such as:

    • Advanced maternal age (usually over 35)
    • Previous miscarriage or implantation failure
    • Severe male factor infertility
    • Previous aneuploidy pregnancy

    However, the decision to use PGT-A should be made in consultation with a fertility specialist, considering individual circumstances and risks.

    Limitations and Risks of PGT-A

    PGT-A has limitations that patients should understand:

    • Not a guarantee: A euploid embryo may still fail to implant or result in miscarriage.
    • Biopsy risk: The biopsy procedure carries a small risk of damaging the embryo.
    • False positives/negatives: As mentioned, mosaicism and technical errors can lead to incorrect results.
    • Cost: PGT-A adds to the cost of IVF, and not all patients will benefit.

    It is essential to have realistic expectations and discuss the potential benefits and risks with your doctor.

    Questions to Ask Your Clinic in Thailand

    Before undergoing PGT-A in Thailand, consider asking:

    • What genetic testing platform do you use, and what is its accuracy rate?
    • How many cells are biopsied, and what is your success rate for obtaining a result?
    • How do you handle mosaic embryos?
    • What is your laboratory’s accreditation and quality control process?
    • How will PGT-A results be interpreted in my specific case?

    Next Steps

    If you are considering PGT-A in Thailand, take these steps:

    1. Consult with a fertility specialist to determine if PGT-A is appropriate for you.
    2. Research clinics and their laboratory standards.
    3. Ask detailed questions about the testing process and result interpretation.
    4. Consider the financial implications and whether PGT-A is covered by any packages.

    For more information on PGT in Thailand, see our PGT in Thailand guide. You may also find our general guides and FAQ helpful.

    Frequently asked questions

    Is PGT-A 100% accurate?

    No, PGT-A is not 100% accurate. It can have false positives and false negatives due to mosaicism, technical limitations, and embryo self-correction. However, it is a reliable screening tool when performed in a quality laboratory.

    What is a false positive in PGT-A?

    A false positive occurs when PGT-A labels an embryo as abnormal (aneuploid) when it actually has the potential to develop into a healthy baby. This can happen due to mosaicism or technical errors.

    How accurate is PGT-A in Thailand?

    The accuracy of PGT-A in Thailand depends on the clinic's laboratory standards, biopsy technique, and testing platform. There is no single accuracy rate for the entire country. It is best to ask your specific clinic about their quality control and success rates.

    Can PGT-A results be wrong?

    Yes, PGT-A results can be wrong, though rarely. Mosaicism and technical errors can lead to incorrect results. This is why it is important to discuss the limitations with your doctor.

    Does PGT-A guarantee a healthy baby?

    No, PGT-A does not guarantee a healthy baby. It only screens for chromosomal abnormalities and does not detect all genetic disorders or birth defects. A euploid embryo may still fail to implant or miscarry.

    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.

  • IVF After 40 in Thailand: What Patients Should Consider

    IVF After 40 in Thailand: An Overview

    If you are over 40 and considering IVF in Thailand, you likely have many questions about your chances, the process, and what to expect. This guide provides a practical overview of the key medical and logistical considerations for IVF at this age. It is important to understand that IVF success depends on many individual factors, and no clinic can guarantee a pregnancy or live birth. The goal is to help you prepare for thorough consultations and make informed decisions.

    At a Glance: Key Points for IVF After 40

    • Your ovarian reserve and egg quality are central to your IVF plan.
    • Preimplantation genetic testing for aneuploidy (PGT-A) may be offered to screen embryos for chromosomal abnormalities.
    • Realistic expectations and open communication with your doctor are essential.
    • Plan for medical evaluations, legal considerations, and travel logistics.

    Understanding Age and Fertility

    As women age, both the quantity and quality of eggs decline. This is a natural process, but it directly affects IVF. After 40, the chance of producing chromosomally normal embryos decreases, which can impact implantation and pregnancy rates. However, every woman is different, and your individual ovarian reserve and overall health play a significant role.

    Ovarian Reserve Testing

    Before starting IVF, your doctor will likely assess your ovarian reserve. This typically involves blood tests (such as AMH and FSH) and an ultrasound to count antral follicles. These tests help estimate how you might respond to fertility medications. Ask your clinic which tests they recommend and what the results mean for your treatment plan.

    Egg Quality and Chromosomal Health

    Egg quality refers to the egg’s ability to fertilize and develop into a healthy embryo. With age, the risk of chromosomal abnormalities (aneuploidy) increases. This is why some clinics may recommend PGT-A, a test that screens embryos for chromosomal issues before transfer. PGT-A can help select embryos with the correct number of chromosomes, potentially reducing the risk of miscarriage and failed implantation. However, it does not guarantee a successful pregnancy, and not all embryos may be suitable for testing.

    Choosing a Clinic in Thailand

    Thailand has many fertility clinics, but not all are the same. When researching clinics, consider their experience with patients over 40, their laboratory standards, and their approach to treatment. You should also verify the clinic’s credentials and accreditations, but remember that these details should be confirmed directly with the clinic or relevant authorities.

    Questions to Ask a Clinic

    • What is your experience with IVF in women over 40?
    • What tests do you recommend to assess my ovarian reserve and overall health?
    • Do you offer PGT-A? If so, what is the process and what are the costs?
    • How many embryos typically reach the blastocyst stage for women in my age group?
    • What is your policy on transferring multiple embryos?
    • What support services do you offer for international patients?

    Medical Considerations and Preparation

    Before traveling, you may need to undergo certain medical evaluations. Your doctor will likely review your medical history, and you may need to have blood tests, an ultrasound, or a semen analysis if you are using a partner’s sperm. It is also important to discuss any chronic conditions, such as thyroid disorders or high blood pressure, as these can affect pregnancy.

    Medication and Treatment Protocols

    IVF involves hormonal medications to stimulate your ovaries. Your doctor will tailor a protocol based on your ovarian reserve and previous responses, if any. Be sure to ask about the types of medications, how they are administered, and potential side effects. You should also clarify the timeline for medication and monitoring, as this may affect your travel plans.

    Legal and Logistical Planning

    IVF in Thailand involves legal and logistical considerations that you must confirm with the relevant authorities and your clinic. These may include:

    • Documentation: You may need to provide passports, marriage certificates, or other legal documents. Requirements vary, so check with your clinic.
    • Consent forms: You will likely need to sign consent forms for treatment, embryo handling, and genetic testing.
    • Embryo disposition: Decide what you want to do with unused embryos, such as freezing, donation, or disposal. This is a personal decision with legal implications.
    • Travel and accommodation: Plan for your stay, including time for monitoring and the procedure itself. Your clinic can advise on the expected duration.

    Financial Considerations

    The cost of IVF in Thailand can vary widely depending on the clinic, the medications used, and any additional services like PGT-A. It is essential to request a detailed cost breakdown from your clinic, including consultation fees, laboratory charges, medication costs, and any extra procedures. Also, ask about payment methods and whether there are any package deals. Remember that there may be additional costs for travel, accommodation, and any follow-up care.

    Emotional and Psychological Support

    IVF can be emotionally challenging, especially when you are over 40 and may have been trying for a while. It is important to have a support system, whether that is a partner, family, or friends. Some clinics offer counseling services, and you may also consider joining online support groups for women going through similar experiences. Take care of your mental health throughout the process.

    Next Steps: Your IVF Checklist

    1. Research clinics and shortlist those with experience in IVF for women over 40.
    2. Schedule a consultation to discuss your medical history and get initial tests.
    3. Ask about PGT-A and whether it is recommended for you.
    4. Clarify all costs and what is included.
    5. Check legal requirements for treatment and embryo handling.
    6. Plan your travel, including time for monitoring and recovery.
    7. Arrange for emotional support and consider counseling.

    For more resources, explore our guides and patient resources. If you have specific questions, feel free to contact us or check our FAQ.

    Frequently asked questions

    Is IVF after 40 worth trying in Thailand?

    IVF can be an option for women over 40, but success depends on individual factors like ovarian reserve and egg quality. It's important to have realistic expectations and discuss your specific situation with a fertility specialist. No clinic can guarantee a pregnancy, but many women do pursue IVF at this age.

    What is PGT-A and why is it recommended for women over 40?

    PGT-A (preimplantation genetic testing for aneuploidy) screens embryos for chromosomal abnormalities before transfer. Because the risk of chromosomal issues increases with age, PGT-A can help select embryos with the correct number of chromosomes, potentially improving the chances of a successful pregnancy and reducing miscarriage risk. However, it is not a guarantee of success.

    How do I choose an IVF clinic in Thailand for someone over 40?

    Look for clinics with experience in treating women over 40, advanced laboratory facilities, and transparent communication. Ask about their success rates for your age group, but remember that rates are not a guarantee. Verify credentials and ask detailed questions about their approach to ovarian reserve testing, PGT-A, and embryo transfer policies.

    What are the legal requirements for IVF in Thailand as a foreigner?

    Legal requirements can vary and may include passports, marriage certificates, and consent forms. It is essential to confirm with your chosen clinic and possibly the relevant Thai authorities. Your clinic should guide you through the necessary documentation and legal steps.

    How long do I need to stay in Thailand for IVF?

    The duration varies depending on your treatment protocol and whether you need to be present for monitoring and procedures. Typically, you may need to stay for several weeks, but your clinic can provide a more specific timeline based on your plan. Plan for flexibility in your travel arrangements.

    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.

  • Understanding PGT-A Mosaic Results: A Guide for Patients in Thailand

    What Does a Mosaic PGT-A Result Mean?

    When you undergo preimplantation genetic testing for aneuploidy (PGT-A), embryos are screened for chromosomal abnormalities. Most embryos will be reported as either chromosomally normal (euploid) or abnormal (aneuploid). However, some embryos show a mix of cells with normal and abnormal chromosomes. This is called mosaicism.

    A mosaic result means that not all cells in the embryo have the same chromosomal makeup. For example, some cells may have the expected 46 chromosomes, while others may have an extra or missing chromosome. The level of mosaicism can vary, and it is often described as low-level or high-level, depending on the proportion of abnormal cells detected.

    It is important to understand that mosaicism is a complex finding. The way it is reported and interpreted can vary between laboratories, and its clinical significance is still being studied. This guide aims to help you understand what a mosaic result might mean and what questions to ask your clinic.

    At a Glance: Key Points About Mosaic Embryos

    • Mosaicism is a mix of normal and abnormal cells in an embryo.
    • Results are often reported as low-level or high-level mosaicism.
    • Interpretation can vary between labs, so ask how your clinic reports and classifies results.
    • A mosaic embryo may have the potential to develop into a healthy baby, but outcomes are not guaranteed.
    • Genetic counseling is strongly recommended to help you understand your specific results.

    How Mosaicism Is Reported in PGT-A Results

    PGT-A involves taking a small sample of cells from a blastocyst (a day-5 or day-6 embryo) and analyzing the chromosomes. The laboratory then provides a report that classifies the embryo as euploid, aneuploid, or mosaic.

    When mosaicism is detected, the report may include details such as the specific chromosome involved and the percentage of abnormal cells. However, there is no universal standard for reporting mosaicism. Some labs may use different thresholds to define low-level versus high-level mosaicism. This variability means that the same embryo could be classified differently by different laboratories.

    Because of this, it is essential to ask your clinic about their specific reporting criteria and what the results mean in your context. You may also want to ask whether the lab provides a detailed breakdown of the findings.

    What Factors Might Influence Your Decision?

    If you receive a mosaic result, you may be faced with a decision about whether to transfer the embryo, discard it, or consider further testing. There is no one-size-fits-all answer, and several factors may influence your decision:

    • The level of mosaicism: Low-level mosaicism may be associated with different outcomes than high-level mosaicism, but research is ongoing.
    • The specific chromosome involved: Some chromosomal abnormalities may have more significant implications than others.
    • Your medical history and fertility journey: Your age, previous pregnancy outcomes, and number of available embryos may all play a role.
    • Your personal values and preferences: Some patients may feel comfortable transferring a mosaic embryo, while others may prefer to pursue other options.
    • Genetic counseling: A genetic counselor can help you interpret your results and discuss potential implications.

    It is important to note that no decision is guaranteed to lead to a successful pregnancy or a healthy baby. Your clinic can provide guidance based on your individual situation, but the final choice is yours.

    Why Genetic Counseling Is Recommended

    Genetic counseling is a key step after receiving a mosaic PGT-A result. A genetic counselor can explain the technical aspects of mosaicism, help you understand the limitations of current knowledge, and discuss what the results might mean for a potential pregnancy. They can also address any emotional or ethical concerns you may have.

    In Thailand, genetic counseling services may be available through your fertility clinic or as a standalone service. Your clinic can refer you to a qualified counselor who can provide personalized support.

    During a counseling session, you might discuss topics such as:

    • The likelihood that a mosaic embryo could implant and develop.
    • Potential risks of miscarriage or birth defects, though exact figures are not available.
    • Options for additional testing, such as prenatal diagnosis during pregnancy.
    • How to interpret the results in the context of your overall treatment plan.

    Remember that genetic counseling is not about telling you what to do—it is about empowering you with information to make an informed decision.

    Questions to Ask Your Clinic About Mosaic Results

    When you receive a mosaic result, it can be helpful to prepare questions for your doctor or genetic counselor. Consider asking:

    • How does your laboratory define and report mosaicism?
    • What is the level of mosaicism in this embryo, and which chromosome is affected?
    • What is the current evidence about transferring mosaic embryos?
    • Are there any additional tests that could provide more information?
    • What are the potential risks and benefits of transferring this embryo compared to other options?
    • What support services are available to help me make a decision?

    These questions can help you have a more informed conversation with your healthcare team.

    Next Steps: A Checklist for Patients

    If you have received a mosaic PGT-A result, here is a simple checklist to guide you:

    1. Review your PGT-A report and note any details about the level of mosaicism and the chromosome involved.
    2. Schedule a consultation with your doctor or a genetic counselor to discuss the results.
    3. Ask about your clinic’s experience with mosaic embryos and their follow-up protocols.
    4. Consider your personal circumstances and what matters most to you in your family-building journey.
    5. Take time to process the information—there is no need to rush a decision.

    Remember that you are not alone in this process. Your clinic and support network are there to help you navigate the next steps.

    Understanding the Limitations of PGT-A

    PGT-A is a valuable tool, but it has limitations. It cannot guarantee a successful pregnancy or a healthy baby. The test is performed on a small sample of cells, which may not represent the entire embryo. Additionally, the science of mosaicism is still evolving, and the long-term outcomes of mosaic embryo transfers are not fully known.

    It is also important to note that PGT-A is not suitable for everyone. Your doctor can help you determine whether PGT-A is appropriate for your situation, based on factors such as your age, medical history, and fertility goals.

    If you have questions about PGT-A or mosaicism, your clinic is the best resource for personalized information. You can also explore our PGT in Thailand page for general information, or browse our guides for more topics. For common questions, visit our FAQ section.

    Frequently asked questions

    What is a mosaic embryo?

    A mosaic embryo has a mix of cells with normal and abnormal chromosomes. This is detected during PGT-A when not all cells in the embryo sample show the same chromosomal makeup.

    Can a mosaic embryo lead to a healthy baby?

    In some cases, mosaic embryos may develop into healthy babies, but outcomes are not guaranteed. The potential depends on factors like the level of mosaicism and the specific chromosome involved. More research is needed.

    How is mosaicism reported in PGT-A results?

    Mosaicism is typically reported as a percentage of abnormal cells, and may be classified as low-level or high-level. However, reporting standards vary between laboratories, so it's important to ask your clinic about their criteria.

    Should I transfer a mosaic embryo?

    The decision to transfer a mosaic embryo is personal and should be made in consultation with your doctor and a genetic counselor. They can help you weigh the potential risks and benefits based on your specific situation.

    Is genetic counseling necessary after a mosaic result?

    Genetic counseling is strongly recommended after a mosaic PGT-A result. A counselor can help you understand the technical details, discuss implications, and support you in making an informed decision.

    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?

    Understanding PGT-A and PGT-M

    If you are exploring IVF in Thailand, you may come across terms like PGT-A and PGT-M. Both are advanced genetic tests performed on embryos before transfer, but they answer different questions. PGT-A (Preimplantation Genetic Testing for Aneuploidy) checks whether an embryo has the correct number of chromosomes. PGT-M (Preimplantation Genetic Testing for Monogenic disorders) looks for a specific inherited genetic condition, such as cystic fibrosis or thalassemia. In short, PGT-A is a general screen, while PGT-M is a targeted test for a known genetic risk.

    At a Glance: PGT-A vs PGT-M

    • PGT-A: Screens for chromosomal abnormalities (aneuploidy) that may affect implantation or lead to miscarriage.
    • PGT-M: Tests for a specific single-gene disorder that runs in the family.
    • PGT-SR: A related test for structural rearrangements like translocations.
    • Choice depends on your medical history: PGT-A is often considered for advanced maternal age or recurrent miscarriage; PGT-M is used when both partners are carriers of a genetic condition.

    What Does PGT-A Test For?

    PGT-A, formerly known as PGS, evaluates embryos for aneuploidy—having too many or too few chromosomes. Most embryos with aneuploidy fail to implant or result in miscarriage. By selecting embryos with the correct number of chromosomes, PGT-A may improve the chances of a successful pregnancy, especially for women over a certain age or those with recurrent implantation failure.

    PGT-A does not test for specific genetic diseases. It is a general screen that looks at all chromosomes. It can identify conditions like Down syndrome (trisomy 21) but cannot tell you if an embryo carries a gene for a single-gene disorder.

    What Does PGT-M Test For?

    PGT-M is used when there is a known genetic condition in the family. It requires prior genetic testing of the parents to identify the specific mutation. PGT-M then checks embryos for that exact mutation, allowing transfer of embryos that do not carry the disorder.

    PGT-M is often used for conditions like thalassemia, sickle cell anemia, cystic fibrosis, Huntington’s disease, and many others. It is also used for HLA matching (to create a sibling donor for an existing child with a condition like Fanconi anemia).

    PGT-SR: A Related Test

    PGT-SR (Preimplantation Genetic Testing for Structural Rearrangements) is used when one parent has a balanced translocation or other chromosomal rearrangement. This can cause embryos to have missing or extra chromosomal material, leading to miscarriage or birth defects. PGT-SR identifies embryos with normal or balanced chromosomes.

    How Are PGT-A and PGT-M Performed?

    Both tests require IVF. After eggs are fertilized, embryos are cultured for several days until they reach the blastocyst stage. A few cells are then biopsied from the trophectoderm (the part that becomes the placenta). The cells are sent to a genetics laboratory for analysis.

    PGT-A uses techniques like next-generation sequencing (NGS) to count chromosomes. PGT-M uses PCR or other methods to detect the specific mutation. In some cases, PGT-A and PGT-M can be performed simultaneously on the same biopsy.

    Which Test Is Right for You?

    The choice between PGT-A and PGT-M depends on your medical history and reproductive goals. Here are some typical scenarios:

    • PGT-A may be considered if: You are over a certain age (often 35 or older), have experienced recurrent miscarriage, have had repeated IVF failures, or have a history of chromosomal abnormalities in a previous pregnancy.
    • PGT-M may be considered if: You or your partner are carriers of a single-gene disorder, you have a family history of a genetic condition, or you have a child with a genetic disorder and wish to avoid passing it on.
    • PGT-SR may be considered if: You or your partner have a chromosomal rearrangement such as a translocation.

    It is important to note that PGT is not a guarantee of a successful pregnancy or a healthy baby. Even with PGT, there is a small risk of misdiagnosis, and not all embryos that appear normal will implant. PGT is not recommended for everyone; your fertility specialist can help you weigh the benefits and limitations.

    What Are the Limitations of PGT?

    PGT-A and PGT-M have limitations. PGT-A cannot detect all genetic abnormalities, such as microdeletions or uniparental disomy. PGT-M is highly accurate but requires prior genetic testing of the parents. Both tests involve embryo biopsy, which carries a small risk of damage, though this is rare. Additionally, PGT does not eliminate the risk of miscarriage or birth defects entirely.

    Cost Considerations in Thailand

    The cost of PGT in Thailand varies depending on the clinic, the number of embryos tested, and whether you need PGT-A, PGT-M, or both. PGT-M is generally more expensive than PGT-A because it requires developing a customized test for your specific mutation. Costs may also include genetic counseling, biopsy, and laboratory fees. It is essential to ask your clinic for a detailed breakdown of costs and what is included.

    Questions to Ask Your Clinic

    Before deciding on PGT, consider asking your fertility specialist or clinic:

    • What is the difference between PGT-A and PGT-M in your practice?
    • Which test do you recommend for my situation, and why?
    • What is the accuracy rate of your genetic testing?
    • How many embryos typically survive the biopsy and testing process?
    • What are the costs for PGT-A, PGT-M, and combined testing?
    • How long does it take to receive results?
    • Are there any additional tests or counseling required?

    Next Steps

    If you are considering PGT in Thailand, start by consulting with a fertility specialist who can review your medical history and recommend the appropriate testing. You may also want to speak with a genetic counselor to understand your risks and options. Once you have a clear picture, you can compare clinics and their PGT services.

    For more information on PGT in Thailand, visit our PGT in Thailand page. You can also explore our guides and FAQ for additional insights.

    Frequently asked questions

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

    Yes, in many cases PGT-A and PGT-M can be performed on the same embryo biopsy. This allows you to screen for chromosomal abnormalities and test for a specific genetic disorder simultaneously. However, not all clinics offer combined testing, so you should confirm with your clinic.

    Is PGT-M only for single gene disorders?

    PGT-M is primarily used for single-gene disorders (monogenic conditions) such as cystic fibrosis, thalassemia, and Huntington's disease. It can also be used for HLA matching in certain situations. For chromosomal structural issues, PGT-SR is more appropriate.

    How long does PGT testing take in Thailand?

    The time for PGT results can vary by clinic and the type of test. Typically, PGT-A results may take a few days to a week, while PGT-M may take longer because a customized test needs to be developed. Your clinic will provide a specific timeline.

    Does PGT guarantee a healthy baby?

    No, PGT does not guarantee a successful pregnancy or a healthy baby. It reduces the risk of transferring embryos with certain genetic abnormalities, but there is still a small chance of misdiagnosis, and other factors can affect pregnancy outcomes.

    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.

  • How to Read Your PGT-A Report in Thailand: A Glossary for Patients

    Receiving your PGT-A report can feel overwhelming. It is full of medical terms and abbreviations that are not part of everyday language. This guide explains the most common terms you will see on a PGT-A report from a clinic in Thailand, in plain English. It is not medical advice, and it does not replace a detailed discussion with your doctor. Instead, it helps you understand the basics so you can ask informed questions.

    At a glance: key terms on your PGT-A report

    • Euploid – the expected number of chromosomes (usually 46).
    • Aneuploid – missing or extra chromosomes.
    • Mosaic – a mix of cells with different chromosome numbers.
    • No result – the test did not produce a clear answer.

    What is PGT-A?

    PGT-A stands for preimplantation genetic testing for aneuploidy. It is a test that can be done on embryos created through IVF before they are transferred to the uterus. The test looks at the number of chromosomes in the embryo. Humans typically have 46 chromosomes, arranged in 23 pairs. Having too many or too few chromosomes can affect whether an embryo develops normally or implants successfully.

    PGT-A is not a guarantee of pregnancy or a healthy baby. It is one tool that may help you and your doctor choose which embryo to transfer. Not every patient needs PGT-A, and its usefulness depends on your individual situation.

    Common terms and abbreviations

    Euploid

    Euploid means the embryo has the expected number of chromosomes. In a PGT-A report, this is often written as “euploid” or “normal.” A euploid embryo has the best chance of implanting and developing, but it is not a guarantee of a successful pregnancy or a healthy child.

    Aneuploid

    Aneuploid means the embryo has missing or extra chromosomes. This is often written as “aneuploid” or “abnormal.” Aneuploid embryos usually do not implant, or they may miscarry. Some aneuploid conditions, like trisomy 21 (Down syndrome), can result in a live birth with health challenges. Your doctor can explain the specific aneuploidy found in your report.

    Mosaic

    Mosaic means the embryo has a mix of cells: some with the expected number of chromosomes and some with an abnormal number. This is written as “mosaic” or “mosaic aneuploid.” The percentage of abnormal cells may be reported, for example, “20% mosaic.” Mosaic embryos are a gray area. They may have a lower chance of success than euploid embryos, but they can still lead to a healthy birth. The decision to transfer a mosaic embryo is complex and should be made with your doctor.

    No result

    Sometimes the test does not produce a clear answer. This can happen if the biopsy sample was too small, the DNA did not amplify well, or the embryo was not suitable for testing. “No result” does not mean the embryo is abnormal. It simply means the test could not give a definitive answer. Your clinic may offer retesting or discuss other options.

    Other abbreviations you might see

    • PGT-M – preimplantation genetic testing for monogenic disorders (single-gene diseases).
    • PGT-SR – preimplantation genetic testing for structural rearrangements (like translocations).
    • CNV – copy number variation, a type of genetic change.
    • SNP – single nucleotide polymorphism, a type of genetic marker.

    These tests are different from PGT-A. Your report may include results from multiple tests if you had them done together.

    How to read your report: a step-by-step approach

    1. Find the embryo identification. Each embryo is usually labeled with a number or code.
    2. Look for the chromosome result. This is often listed as “euploid,” “aneuploid,” “mosaic,” or “no result.”
    3. Check for specific chromosomes. If an aneuploidy is found, the report may list which chromosome is affected (for example, “trisomy 21”).
    4. Note the mosaic percentage. If the embryo is mosaic, the report may show the percentage of abnormal cells.
    5. Read any additional comments. Some reports include notes from the laboratory about the quality of the sample or the confidence of the result.

    If anything is unclear, write down your questions and ask your clinic. They can explain what the results mean for your specific embryos.

    What your report does not tell you

    A PGT-A report does not tell you everything about an embryo. It does not guarantee that an embryo will implant, develop, or result in a healthy baby. It also does not screen for all genetic conditions. PGT-A only looks at the number of chromosomes, not the structure or specific genes. Other tests, like PGT-M, are needed for single-gene disorders.

    Additionally, PGT-A cannot predict the future health of a child. Even a euploid embryo may have other issues that are not detected by this test.

    Questions to ask your clinic

    • What does this result mean for my chances of pregnancy?
    • Are there any limitations to this test?
    • Should I consider retesting a “no result” embryo?
    • What are the options for mosaic embryos?
    • How does this result affect my transfer plan?

    Next steps after receiving your report

    • Schedule a follow-up appointment with your doctor to discuss the results.
    • Bring a list of questions to the appointment.
    • Ask for a written explanation if needed.
    • Consider genetic counseling if you have questions about specific results.

    Remember, your PGT-A report is a piece of information, not a final verdict. Your doctor will help you interpret it in the context of your overall treatment.

    For more information about PGT in Thailand, see our PGT in Thailand guide. You may also find our guides and FAQ sections helpful.

    Frequently asked questions

    What does euploid mean on a PGT-A report?

    Euploid means the embryo has the expected number of chromosomes (usually 46). It is often called 'normal.' A euploid embryo has a good chance of implanting, but it is not a guarantee of pregnancy or a healthy baby.

    What does aneuploid mean?

    Aneuploid means the embryo has missing or extra chromosomes. This can affect implantation or lead to miscarriage. Some aneuploidies, like trisomy 21, can result in a live birth with health challenges. Your doctor can explain the specific finding.

    What is a mosaic embryo?

    A mosaic embryo has a mix of cells with different chromosome numbers. For example, some cells may be euploid and some aneuploid. The report may show a percentage of abnormal cells. Mosaic embryos have a lower chance of success than euploid embryos, but they can still lead to a healthy birth. The decision to transfer a mosaic embryo is complex.

    What does 'no result' mean on a PGT-A report?

    'No result' means the test could not produce a clear answer. This can happen if the sample was too small or the DNA did not amplify well. It does not mean the embryo is abnormal. Your clinic may offer retesting or discuss other options.

    Is PGT-A the same as PGT-M?

    No. PGT-A screens for aneuploidy (chromosome number). PGT-M tests for specific single-gene disorders. They are different tests with different purposes. Your report may include results from both if you had them done.

    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.

  • What to Do If You Miss a PGT-A Result in Thailand

    Receiving a “no result” or inconclusive PGT-A report can be confusing and stressful. You may wonder what went wrong, whether the embryo is still usable, and what your next steps are. This guide explains why PGT-A sometimes fails to produce a result, what options you might have—such as rebiopsy—and what questions to ask your clinic in Thailand. It is not medical advice, but it can help you have a more informed conversation with your fertility team.

    At a Glance: What to Know About a Missed PGT-A Result

    • A “no result” means the laboratory could not determine the embryo’s chromosomal status.
    • Possible reasons include insufficient DNA, failed amplification, or technical issues.
    • Options may include rebiopsy, additional testing, or proceeding without PGT-A results.
    • Your clinic can explain the specific reason and what it means for your embryo.
    • Ask about costs, timelines, and whether rebiopsy is recommended for your situation.

    Why Did My PGT-A Test Return No Result?

    PGT-A (preimplantation genetic testing for aneuploidy) screens embryos for chromosomal abnormalities before transfer. However, the test is not always successful. A “no result” or “inconclusive” outcome can happen for several reasons:

    • Insufficient DNA: The biopsy may have collected too few cells, or the DNA may have degraded before analysis.
    • Amplification failure: The process of copying DNA may fail, leaving too little material to test.
    • Technical issues: Laboratory equipment or protocols can occasionally fail, leading to an unreadable result.
    • Mosaicism or low-level abnormalities: Sometimes the result is unclear because the embryo has a mix of normal and abnormal cells.

    It is important to note that a no-result does not necessarily mean the embryo is abnormal. It simply means the test could not give a clear answer. Your clinic can provide more details about the specific reason in your case.

    What Are My Options After a No-Result?

    If your PGT-A result is missing or inconclusive, you have several potential paths. The right choice depends on your medical history, the number of embryos, and your clinic’s recommendations.

    Option 1: Rebiopsy

    Rebiopsy involves taking a new sample from the embryo and sending it for testing again. This is possible if the embryo has survived the initial biopsy and is still viable. However, rebiopsy is not always recommended because it may reduce the embryo’s chances of implantation. Your clinic will assess whether the embryo is suitable for another biopsy.

    Option 2: Proceed Without PGT-A Results

    Some patients choose to transfer an embryo without knowing its chromosomal status. This may be an option if you have few embryos or if the no-result was due to technical issues rather than embryo quality. Your doctor can discuss the potential risks and benefits based on your age and history.

    Option 3: Additional Testing

    In some cases, your clinic may suggest other tests, such as a different genetic screening method or a test on a previously biopsied sample. However, this depends on the laboratory’s capabilities and the embryo’s condition.

    Questions to Ask Your Clinic

    When you receive a no-result, it is helpful to have a clear conversation with your fertility team. Here are questions you might ask:

    • What was the specific reason for the no-result?
    • Is the embryo still viable for transfer or rebiopsy?
    • What are the success rates for rebiopsy in your laboratory?
    • What are the risks of rebiopsy for this embryo?
    • What are the costs and timeline for rebiopsy?
    • If we proceed without PGT-A, what are the potential implications?
    • Are there any alternative tests we should consider?

    Understanding Rebiopsy in Thailand

    If you are considering rebiopsy in Thailand, it is important to understand that the process is similar to the initial biopsy. The embryo is thawed (if frozen), a few cells are removed, and the sample is sent to a genetics laboratory. The embryo is then refrozen while you wait for results.

    Not all embryos are suitable for rebiopsy. The embryologist will evaluate the embryo’s quality and cell count. In some cases, the embryo may not survive the additional handling. Your clinic can give you a realistic assessment based on your specific embryos.

    Costs and Logistics to Consider

    The cost of rebiopsy and additional PGT-A testing can vary widely. It may include laboratory fees, biopsy fees, and shipping costs if the sample is sent to an external lab. Some clinics may offer package deals, but it is best to ask for a detailed breakdown.

    Timing is also important. Rebiopsy may add several weeks to your treatment cycle, as the new sample must be analyzed and the embryo must be refrozen. If you are planning a frozen embryo transfer, this delay may affect your schedule.

    Emotional and Practical Next Steps

    Receiving a no-result can be emotionally challenging. It is normal to feel disappointed or anxious. Give yourself time to process the information, and don’t hesitate to seek support from your clinic’s counseling services or a trusted professional.

    Practically, you may want to:

    • Request a written explanation of the no-result from your clinic.
    • Ask for a consultation to discuss all options in detail.
    • Consider getting a second opinion if you are unsure about the recommended path.
    • Review your overall treatment plan and timeline.

    Your Next-Step Checklist

    • Contact your clinic to schedule a follow-up appointment.
    • Prepare a list of questions (see above).
    • Ask for a clear explanation of the no-result and any available options.
    • Discuss the viability of rebiopsy for your embryo(s).
    • Clarify costs, timelines, and what happens next.

    Remember, a no-result is not the end of the road. Many patients go on to have successful outcomes, whether through rebiopsy or by proceeding without PGT-A. The key is to make an informed decision with your medical team.

    Frequently asked questions

    What does it mean if my PGT-A result is inconclusive?

    An inconclusive PGT-A result means the laboratory could not determine the embryo's chromosomal status. This can happen due to insufficient DNA, technical issues, or other factors. It does not necessarily mean the embryo is abnormal.

    Can I rebiopsy an embryo after a failed PGT-A test?

    Rebiopsy may be possible if the embryo is still viable and has enough cells. However, it is not always recommended because it can reduce the embryo's implantation potential. Your clinic will assess whether rebiopsy is suitable for your specific embryo.

    How long does rebiopsy take in Thailand?

    The timeline for rebiopsy can vary depending on the clinic and laboratory. It may add several weeks to your treatment cycle, as the new sample must be analyzed and the embryo must be refrozen. Ask your clinic for a specific timeline.

    Is it safe to transfer an embryo without PGT-A results?

    Transferring an embryo without PGT-A results is an option, but it carries some uncertainty. Your doctor can discuss the potential risks and benefits based on your age, medical history, and the number of embryos available.

    What questions should I ask my clinic after a no-result?

    Ask about the specific reason for the no-result, whether the embryo is viable for rebiopsy, the success rates and risks of rebiopsy, costs and timeline, and what alternatives are available. This will help you make an informed decision.

    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.

  • How to Prepare for a PGT Consultation in Thailand: A Checklist

    If you have a preimplantation genetic testing (PGT) consultation scheduled in Thailand, you likely have questions about what to expect and how to make the most of your appointment. This guide offers a practical checklist to help you prepare, covering the types of PGT, what to bring, and key questions to ask. Remember, a consultation is a two-way conversation: it’s your opportunity to gather information and decide if PGT is right for your family.

    At a Glance: Your PGT Consultation Prep

    • Bring your complete medical and fertility history, including any previous test results.
    • Understand the three main types of PGT: PGT-A, PGT-M, and PGT-SR.
    • Prepare questions about limitations, timelines, and costs.
    • Ask about genetic counseling and what happens after results.
    • Confirm logistics like travel, documents, and follow-up appointments.

    Understanding PGT: The Basics

    Preimplantation genetic testing is performed on embryos created through IVF before transfer. It helps identify genetic abnormalities that may affect implantation or lead to certain genetic disorders. There are three main types:

    • PGT-A (Aneuploidy Screening): Checks for the correct number of chromosomes. Embryos with an abnormal number (aneuploidy) may fail to implant or result in miscarriage.
    • PGT-M (Monogenic Disorders): Tests for specific single-gene disorders, such as cystic fibrosis or sickle cell anemia, when one or both parents carry a known mutation.
    • PGT-SR (Structural Rearrangements): Detects chromosomal structural changes, like translocations, that can cause infertility or miscarriage.

    Your doctor will recommend which type, if any, is appropriate based on your medical history and family planning goals. PGT is not a guarantee of pregnancy or a healthy baby, and it is not necessary for everyone.

    Before Your Consultation: What to Bring

    To help your genetic counselor or fertility specialist give you the most relevant advice, gather the following:

    • Medical records: Any previous fertility treatments, hormone levels, semen analysis, or genetic test results.
    • Family health history: Information about genetic conditions in your family or your partner’s family, including miscarriages or children with genetic disorders.
    • List of medications: Current prescriptions, supplements, or herbal remedies.
    • Questions: Write down anything you want to ask, so you don’t forget during the appointment.

    If you are traveling from abroad, also consider bringing a summary of your medical history in English, and confirm with the clinic what documents they require.

    Key Questions to Ask During Your PGT Consultation

    Use this list to guide your conversation. Not all questions may apply, but they cover the essential areas.

    About the Test Type

    • Which type of PGT do you recommend for my situation, and why?
    • What are the limitations of this test? What can it not detect?
    • Are there alternative tests or screening methods I should consider?

    About the Process and Timeline

    • How long does the testing take, and when will I receive results?
    • Will the testing affect the embryo transfer timeline?
    • How many embryos are typically needed for testing?

    About Results and Next Steps

    • How are results interpreted? What does a “normal” or “abnormal” result mean?
    • What are my options if no embryos are suitable for transfer?
    • Will I receive genetic counseling to discuss the results?

    About Costs and Logistics

    • What is the total cost of PGT, including biopsy, testing, and counseling?
    • Are there any additional fees for shipping samples or follow-up consultations?
    • What is the clinic’s policy on refunds if testing cannot be completed?

    Understanding PGT Results and Limitations

    PGT results can be complex. A “normal” result means the embryo appears to have the expected number of chromosomes or does not carry the specific mutation tested. However, PGT cannot detect all genetic conditions, and it does not guarantee a successful pregnancy or a healthy baby. Embryos can still have other abnormalities not covered by the test.

    It’s also important to understand that PGT involves a biopsy of a few cells from the embryo. While generally considered safe, there is a small risk of damage to the embryo. Your doctor can explain the risks and benefits in your specific case.

    Next Steps After Your Consultation

    After your consultation, you may need to:

    • Complete any additional genetic testing or carrier screening recommended.
    • Decide whether to proceed with PGT and sign consent forms.
    • Plan your IVF cycle timeline, including ovarian stimulation and egg retrieval.
    • Arrange travel and accommodation if you are coming from abroad.

    Take time to discuss the information with your partner and ask for a written summary if needed.

    Your PGT Consultation Checklist

    Preparation Step Details to Confirm
    Medical history Bring all relevant records, including genetic tests and IVF history.
    Family history Note any genetic conditions in either family.
    Questions Write down your top questions about test type, limitations, and costs.
    Logistics Confirm appointment time, location, and any required documents.
    Follow-up Ask about how results will be communicated and if genetic counseling is included.

    Preparing for your PGT consultation in Thailand can help you feel more confident and informed. Use this checklist to guide your preparation, and don’t hesitate to ask your clinic for clarification on any point. For more information, explore our PGT in Thailand guide, or visit our guides and FAQ sections.

    Frequently asked questions

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

    PGT-A screens embryos for an abnormal number of chromosomes (aneuploidy). PGT-M tests for specific single-gene disorders when parents are known carriers. PGT-SR detects structural chromosomal rearrangements, such as translocations. Your doctor will recommend the appropriate type based on your medical history.

    How long does PGT testing take in Thailand?

    The timeline can vary depending on the type of test and the laboratory. Typically, results may take from a few days to a couple of weeks. Your clinic will provide a specific timeline during your consultation.

    Is PGT mandatory for IVF in Thailand?

    No, PGT is not mandatory for all IVF patients. It is recommended in certain situations, such as advanced maternal age, recurrent miscarriage, or known genetic disorders. Your doctor will discuss whether PGT is appropriate for you.

    What should I bring to my PGT consultation?

    Bring your medical records, including previous fertility treatments and genetic test results, a list of current medications, and a detailed family health history. Also, prepare a list of questions to ask your doctor.

    Can PGT guarantee a healthy baby?

    No, PGT cannot guarantee a successful pregnancy or a healthy baby. It reduces the risk of transferring embryos with certain genetic abnormalities, but it does not detect all potential issues. Discuss the limitations with your doctor.

    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 and Embryo Grading: How They Work Together

    Understanding Embryo Grading and PGT-A

    When you undergo IVF, your embryologist will assess your embryos under a microscope and assign a grade based on their appearance. This is called embryo grading or morphology assessment. In parallel, preimplantation genetic testing for aneuploidy (PGT-A) analyzes the chromosomes of the embryo to check for abnormalities. Both tools help you and your clinic decide which embryos to transfer, but they measure different things and are not interchangeable.

    Embryo grading is a visual snapshot of how the embryo looks at a specific time, while PGT-A is a genetic test that looks at the actual chromosomal content. A high-grade embryo may still have chromosomal issues, and a lower-grade embryo can sometimes be genetically normal. Understanding how these two pieces of information work together can help you make more informed decisions during your IVF journey.

    At a Glance: Key Differences

    • Embryo grading: Visual assessment of embryo development and quality.
    • PGT-A: Genetic test for chromosomal normality.
    • Purpose: Grading helps rank embryos for transfer; PGT-A adds genetic information.
    • Limitations: Grading cannot detect chromosomal issues; PGT-A cannot assess embryo appearance.

    What Is Embryo Grading?

    Embryo grading is a standard part of IVF. Embryologists evaluate embryos at various stages, typically on day 3 (cleavage stage) and day 5 (blastocyst stage). They look at characteristics such as cell number, cell size, fragmentation, and for blastocysts, the quality of the inner cell mass and trophectoderm. Based on these observations, they assign a grade, often using a letter or number system.

    Grading is subjective and varies between clinics, but it provides a useful snapshot of embryo development. A higher grade often indicates a better chance of implantation, but it is not a guarantee. Many factors influence embryo viability, and grading alone cannot predict genetic health.

    What Is PGT-A?

    PGT-A is a genetic test performed on embryos created through IVF. It involves taking a small sample of cells from the embryo (usually from the trophectoderm at the blastocyst stage) and analyzing the DNA to check for aneuploidy—an abnormal number of chromosomes. Embryos with the correct number of chromosomes (euploid) are considered more likely to implant and develop into a healthy pregnancy.

    PGT-A is not a routine test for everyone. It is often recommended for women of advanced maternal age, couples with recurrent pregnancy loss, or those with previous failed IVF cycles. It can also be used to reduce the risk of transferring an embryo with chromosomal abnormalities. However, PGT-A does not guarantee a successful pregnancy, and it does not test for all genetic conditions.

    How Embryo Grading and PGT-A Complement Each Other

    Embryo grading and PGT-A provide different layers of information. Grading helps you see which embryos look the most developed, while PGT-A tells you which embryos are most likely to be genetically normal. Together, they can help you prioritize which embryos to transfer.

    For example, if you have several embryos, you might choose to transfer a high-grade embryo that is also euploid. If you have a high-grade embryo that is aneuploid, you might decide not to transfer it. Conversely, a lower-grade embryo that is euploid might be a better choice than a high-grade embryo that is aneuploid.

    It is important to note that PGT-A is not a substitute for embryo grading. A genetically normal embryo can still have poor morphology, and a high-grade embryo can still be genetically abnormal. The two assessments are complementary, and your clinic will use both to guide your transfer decisions.

    Embryo Grading and PGT-A in Thailand

    If you are considering IVF in Thailand, you may encounter clinics that offer both embryo grading and PGT-A. Thailand has a growing reputation for fertility treatments, and many clinics provide advanced genetic testing. However, it is essential to understand that embryo grading practices and PGT-A protocols can vary between clinics.

    When researching clinics, ask about their embryo grading system and how they integrate PGT-A results into transfer decisions. Some clinics may have specific criteria for which embryos to biopsy or transfer. It is also important to discuss the costs and logistics, as PGT-A adds an extra step to the IVF process.

    Questions to Ask Your Clinic

    • How do you grade embryos, and what criteria do you use?
    • Do you recommend PGT-A for my situation? Why or why not?
    • How does PGT-A affect the timing of embryo transfer?
    • What are the risks and limitations of PGT-A?
    • How do you combine embryo grading and PGT-A results when selecting embryos for transfer?

    Next Steps

    If you are exploring IVF and PGT-A, take the time to understand how embryo grading and genetic testing work together. Discuss your options with a fertility specialist, and ask about the specific protocols at your chosen clinic. Remember that every IVF journey is unique, and what works for one person may not be right for another.

    For more information on PGT in Thailand, visit our PGT in Thailand page. You can also explore our guides and FAQ sections for additional insights.

    Frequently asked questions

    Can a high-grade embryo still have chromosomal abnormalities?

    Yes, embryo grading is a visual assessment and cannot detect chromosomal issues. A high-grade embryo may still be aneuploid, which is why PGT-A is used to provide genetic information.

    Is PGT-A necessary for all IVF patients?

    No, PGT-A is not necessary for everyone. It is often recommended for specific situations, such as advanced maternal age, recurrent pregnancy loss, or previous failed IVF cycles. Your doctor can advise based on your individual circumstances.

    Does PGT-A guarantee a successful pregnancy?

    No, PGT-A does not guarantee pregnancy or live birth. It only screens for chromosomal abnormalities, and other factors such as embryo quality, uterine environment, and overall health also play a role.

    How long does PGT-A take?

    PGT-A typically requires a biopsy of the embryo and then genetic analysis, which can take several days to a few weeks. The exact timeline depends on the laboratory and the specific testing method used.

    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.

  • Understanding PGT-A Results and Mosaicism: A Guide for Thailand Patients

    What Are PGT-A Results?

    PGT-A (preimplantation genetic testing for aneuploidy) is a test performed on embryos created through IVF. It checks for the correct number of chromosomes. Embryos with the expected number are often called euploid, while those with extra or missing chromosomes are aneuploid. Your clinic will provide a report that classifies each embryo based on the testing laboratory’s criteria.

    It’s important to understand that PGT-A is a screening tool, not a guarantee of pregnancy or a healthy baby. It helps your medical team choose which embryos to consider for transfer, but many factors influence the outcome.

    What Is Mosaicism?

    Mosaicism means that an embryo has a mixture of cells: some with the normal number of chromosomes and some with an abnormal number. This is different from a uniformly abnormal embryo. Mosaicism is reported as a percentage, for example, 20% or 40%, indicating the proportion of abnormal cells detected in the biopsy sample.

    Mosaic embryos are often categorized as low, medium, or high level, depending on the percentage. However, there is no universal standard for these categories, so it’s essential to ask your clinic how they interpret the results.

    How Are Mosaic Embryos Reported?

    PGT-A reports typically list each embryo with a result such as euploid, aneuploid, or mosaic. For mosaic embryos, the report may include the specific chromosome involved and the percentage of abnormal cells. Some reports also note whether the abnormality is a gain or loss of a chromosome.

    Because testing methods and laboratory criteria vary, the same embryo might be classified differently by different labs. Always ask your clinic to explain the report in detail, including what the numbers mean for your specific situation.

    What Does a Mosaic Result Mean for Transfer?

    Mosaic embryos can sometimes lead to a healthy pregnancy, but the outcome is uncertain. Some studies suggest that embryos with lower levels of mosaicism may have a better chance than those with higher levels, but this is not guaranteed. Your clinic will consider the specific mosaic pattern, your medical history, and other factors when advising you.

    It’s crucial to have a detailed discussion with your fertility specialist about the risks and benefits of transferring a mosaic embryo. They can help you weigh the options based on your individual circumstances.

    Questions to Ask Your Clinic About Mosaic Results

    • What is the exact percentage of mosaicism for my embryo?
    • Which chromosome is affected, and does that matter?
    • How does your lab categorize low, medium, or high mosaicism?
    • What are the potential risks if I transfer a mosaic embryo?
    • Are there any additional tests or counseling available?
    • What is your clinic’s policy on mosaic embryo transfer?

    Next Steps After Receiving PGT-A Results

    1. Review the report with your fertility specialist.
    2. Ask for a clear explanation of each embryo’s status.
    3. Discuss the options for transfer, further testing, or additional IVF cycles.
    4. Consider genetic counseling to understand the implications.
    5. Take time to make an informed decision that aligns with your values and goals.

    Understanding the Limitations of PGT-A

    PGT-A is a powerful tool, but it has limitations. It cannot detect all genetic conditions, and it does not guarantee a successful pregnancy. The test is performed on a few cells from the embryo, which may not represent the entire embryo. Additionally, mosaicism can be an artifact of the testing process.

    It’s also important to note that PGT-A is not recommended for everyone. Your clinic will advise whether it is appropriate for your situation based on factors like age and medical history.

    Seeking Support and Information

    Receiving mosaic results can be confusing and emotional. It’s okay to seek a second opinion or ask for more time to decide. Many clinics in Thailand offer counseling services to help you navigate this process.

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

    Frequently asked questions

    What is the difference between a mosaic and an aneuploid embryo?

    A mosaic embryo has a mixture of normal and abnormal cells, while an aneuploid embryo has all cells with an abnormal number of chromosomes. Mosaic embryos may have a chance to develop normally, but the outcome is uncertain.

    Can a mosaic embryo result in a healthy baby?

    In some cases, mosaic embryos have led to healthy live births, but the risk of abnormalities is higher than with euploid embryos. The outcome depends on the specific mosaic pattern and other factors. Your clinic can provide more personalized guidance.

    How is mosaicism percentage determined?

    The percentage is estimated from the biopsy sample, which contains a few cells from the embryo. The laboratory analyzes the proportion of abnormal cells in that sample. This may not reflect the entire embryo.

    Should I consider transferring a mosaic embryo?

    The decision to transfer a mosaic embryo is complex and should be made in consultation with your fertility specialist and genetic counselor. They will consider the level of mosaicism, the specific chromosome involved, and your medical history.

    Are there additional tests to confirm mosaicism?

    Sometimes, further testing such as re-biopsy or comprehensive chromosome screening may be offered, but this is not always possible or conclusive. Your clinic can discuss the options available.

    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.

  • How to Interpret IVF Success Rates in Thailand Without Being Misled

    When you compare IVF clinics in Thailand, success rates are often the first number you see. But those numbers can be presented in many different ways, and without careful reading, you may draw the wrong conclusions. This guide helps you understand what to look for, what questions to ask, and how to compare clinics fairly.

    At a Glance: Key Points to Remember

    • Success rates are not standardized across clinics, so direct comparisons can be misleading.
    • Always look for age-stratified data, not just an overall average.
    • Check whether the rates refer to fresh cycles, frozen cycles, or all cycles combined.
    • Ask whether PGT-A (preimplantation genetic testing for aneuploidy) was included in the reported cycles.
    • Understand the difference between pregnancy rate, live birth rate, and ongoing pregnancy rate.

    Why IVF Success Rates Are Not Directly Comparable

    IVF success rates depend on many factors, including patient age, cause of infertility, embryo quality, and clinic protocols. Because clinics may report different types of cycles, use different definitions of success, and treat different patient populations, a simple percentage cannot tell the whole story. For example, a clinic that treats mostly younger patients may report higher success rates than one that treats many older patients, even if the quality of care is similar.

    Additionally, some clinics may report success per embryo transfer, while others report per egg retrieval. These are very different denominators. Always check what the rate is based on.

    Key Questions to Ask About Any Success Rate

    Before you trust a success rate, ask the clinic for the following details:

    • What is the definition of success? Is it a positive pregnancy test, a clinical pregnancy (seen on ultrasound), or a live birth? Live birth rate is the most meaningful outcome.
    • What is the age range of the patients included? Rates should be broken down by age groups, such as under 35, 35-37, 38-40, and over 40.
    • Are fresh and frozen cycles reported separately? Frozen embryo transfers (FET) often have different success rates than fresh transfers.
    • Were PGT-A tested embryos included? If a clinic reports success rates for PGT-A tested embryos, that is a different population than untested embryos.
    • How many cycles were included? Small sample sizes can make rates unreliable.

    Understanding Age-Stratified Data

    Age is the single most important factor in IVF success. A clinic’s overall success rate may be skewed by the age profile of its patients. For example, if a clinic has a high proportion of patients under 35, the overall rate will be higher than a clinic that treats many patients over 40. Always ask for success rates broken down by age group. This allows you to compare clinics more fairly for your specific age.

    Fresh vs. Frozen Cycles: Why It Matters

    Some clinics report success rates for fresh embryo transfers, others for frozen embryo transfers, and some combine both. These can differ significantly. Frozen embryo transfers are now common, and in some cases, they may have higher success rates than fresh transfers, especially when the uterine lining is better prepared. When comparing clinics, make sure you are comparing the same type of cycle.

    The Role of PGT-A in Success Rates

    PGT-A (preimplantation genetic testing for aneuploidy) screens embryos for chromosomal abnormalities before transfer. When a clinic reports success rates for PGT-A tested embryos, it is reporting on a selected group of embryos that have already passed a screening step. This can lead to higher success rates per transfer, but it does not mean that PGT-A guarantees a pregnancy or a live birth. Also, not all patients choose PGT-A, and its use varies by clinic. When you see a success rate, ask whether PGT-A was used and whether the rate includes only tested embryos or all embryos.

    Other Factors That Affect Success Rates

    Beyond age and cycle type, other factors can influence success rates:

    • Cause of infertility: Some diagnoses, such as severe male factor or diminished ovarian reserve, have lower success rates.
    • Number of previous IVF attempts: Patients who have had multiple failed cycles may have lower success rates.
    • Embryo transfer policy: Some clinics transfer multiple embryos, which can increase pregnancy rates but also increase the risk of multiples.
    • Laboratory standards: Embryology lab quality can affect embryo development and survival.

    Questions to Ask a Clinic

    When you speak with a clinic, ask these specific questions:

    • What is your live birth rate per egg retrieval for my age group?
    • What is your live birth rate per frozen embryo transfer for my age group?
    • Do you report success rates for PGT-A tested embryos separately?
    • How many cycles were included in your reported rates?
    • What is your policy on single vs. multiple embryo transfer?

    Next Steps: How to Compare Clinics Fairly

    1. Gather success rate data from several clinics, but always ask for the same type of data (e.g., live birth rate per frozen embryo transfer for women under 35).
    2. Ask for age-stratified data and check if the sample size is adequate.
    3. Ask whether PGT-A was used and whether the rates are for tested or untested embryos.
    4. Consider other factors like clinic experience, lab standards, and your personal comfort.
    5. Remember that success rates are just one part of the decision; your individual circumstances matter more.

    By asking the right questions and understanding how success rates are calculated, you can make a more informed choice and avoid being misled by numbers that may not apply to you.

    Frequently asked questions

    What is the most reliable IVF success rate to look at?

    The most reliable measure is the live birth rate per cycle or per embryo transfer, broken down by age group. This gives you a realistic picture of the chance of having a baby, not just a positive pregnancy test.

    Why do IVF success rates vary so much between clinics?

    Success rates vary because clinics report different types of cycles, use different definitions of success, and treat different patient populations. Without standardization, direct comparisons can be misleading.

    Does PGT-A improve IVF success rates?

    PGT-A can help select embryos that are more likely to implant, which may increase the success rate per transfer. However, it is not a guarantee, and its impact depends on individual factors. Always ask how PGT-A affects the reported rates.

    Should I compare fresh and frozen embryo transfer success rates separately?

    Yes, because fresh and frozen cycles can have different success rates. Comparing them separately gives you a clearer picture of what to expect for each type of transfer.

    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.