标签: genetic testing

  • 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.

  • 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 and Genetic Carrier Screening in Thailand: What to Know

    What Is Genetic Carrier Screening?

    Genetic carrier screening is a blood or saliva test that looks for changes (variants) in genes that can cause certain inherited conditions. If you carry a variant for a condition, you usually do not have the condition yourself, but you may pass the variant to your children. When both partners carry a variant in the same gene, there is a chance their child could inherit the condition.

    Carrier screening can be done before pregnancy or as part of your IVF planning. It is not a routine test for everyone, and it does not screen for all possible genetic conditions. The decision to have carrier screening is personal and should be made with the help of a genetic counselor or healthcare provider.

    At a Glance: Key Points

    • Carrier screening identifies genetic variants that may not affect you but could affect your children.
    • It is most informative when both partners are tested.
    • Results can help you understand reproductive options, including IVF with preimplantation genetic testing for monogenic disorders (PGT-M).
    • Carrier screening is not a guarantee of a healthy baby and does not replace other prenatal tests.
    • In Thailand, carrier screening is available in many fertility centers, but availability and panels vary.

    How Carrier Screening Relates to IVF and PGT-M

    If you are planning IVF, carrier screening results may influence your treatment plan. For example, if both partners are carriers for the same autosomal recessive condition, you may consider IVF with PGT-M. PGT-M is a technique used to test embryos for a specific genetic condition before transfer. It is not a routine add-on for all IVF patients; it is used when there is a known risk of passing on a particular genetic disorder.

    Carrier screening is not the same as PGT-A (preimplantation genetic testing for aneuploidy), which screens embryos for chromosomal abnormalities. PGT-M is targeted to a specific gene, while PGT-A looks at chromosome number. Some patients may have both types of testing, but the decision depends on your medical history and reproductive goals.

    What Does Carrier Screening Test For?

    Carrier screening panels vary. Some test for a few common conditions, while expanded panels may screen for hundreds of conditions. In Thailand, the specific panel offered will depend on the laboratory and clinic. Common conditions screened include cystic fibrosis, spinal muscular atrophy, thalassemia, and others, but the exact list varies.

    It is important to ask your clinic which conditions are included in the panel and whether it is tailored to your ethnic background. Some genetic conditions are more common in certain populations, and a genetic counselor can help you understand which panel may be most relevant for you.

    What Do Results Mean?

    Carrier screening results can be positive, negative, or inconclusive. A positive result means you carry a variant for a condition, but it does not mean you have the condition. A negative result reduces the likelihood that you are a carrier for the conditions tested, but it does not eliminate all risk. Inconclusive results are rare but may require further testing.

    If both partners are carriers for the same condition, the chance of having an affected child is 25% with each pregnancy. This is a statistical chance, not a certainty. A genetic counselor can explain your specific results and what they mean for your family planning.

    Carrier Screening in Thailand: What to Consider

    If you are considering carrier screening in Thailand, here are some points to discuss with your clinic:

    • Which genetic conditions are included in the screening panel?
    • Is the test performed in Thailand or sent to an overseas laboratory?
    • How long will it take to receive results?
    • Will a genetic counselor be available to explain the results?
    • How do results affect your IVF treatment plan, if at all?

    Costs for carrier screening can vary widely, and insurance coverage may not apply. It is best to ask for a detailed quote and check whether the fee includes counseling.

    Questions to Ask Your Clinic

    • What type of carrier screening do you offer, and what conditions does it cover?
    • Do you recommend carrier screening for all IVF patients, or only for those with a family history?
    • If we both are carriers, what are our options for IVF and PGT-M?
    • Are there any limitations to the screening test?
    • Can we meet with a genetic counselor before and after testing?

    Next Steps: Your Checklist

    1. Discuss your family history and any known genetic conditions with your healthcare provider.
    2. Ask your fertility clinic about carrier screening options and whether they recommend it for you.
    3. If you decide to proceed, arrange for both partners to be tested.
    4. Plan to review results with a genetic counselor to understand your options.
    5. Consider how results may affect your IVF timeline and treatment decisions.

    Carrier screening is a personal choice. It can provide useful information, but it is not required for everyone. Always seek guidance from qualified professionals who can interpret your results in the context of your overall health and reproductive plans.

    Frequently asked questions

    Is genetic carrier screening necessary before IVF?

    Carrier screening is not necessary for everyone. It is recommended when there is a family history of a genetic condition, or when you want more information about your risks. Discuss with your doctor whether it is appropriate for you.

    What is the difference between carrier screening and PGT-M?

    Carrier screening tests parents to see if they carry a gene variant. PGT-M tests embryos for a specific genetic condition before transfer. Carrier screening can identify couples at risk, and PGT-M can help select embryos that do not have the condition.

    Can carrier screening be done in Thailand?

    Yes, many fertility clinics in Thailand offer carrier screening. The availability of specific panels may vary, so ask your clinic about the tests they provide.

    What if both partners are carriers for the same condition?

    If both partners are carriers for the same autosomal recessive condition, there is a 25% chance with each pregnancy that the child will be affected. You may consider IVF with PGT-M to test embryos for that condition. A genetic counselor can explain your options.

    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 Handle a Failed PGT-A Cycle in Thailand

    Receiving news that no embryos passed PGT-A screening can be disappointing and confusing. You may wonder what went wrong, whether you have options, and how to move forward. This guide explains what a failed PGT-A cycle means, how to review your results with your doctor, and what questions to ask when planning your next steps. It is not medical advice—always consult your fertility specialist for personalized guidance.

    Understanding PGT-A Results

    PGT-A (preimplantation genetic testing for aneuploidy) screens embryos for chromosomal abnormalities. Embryos with the correct number of chromosomes are considered euploid, while those with missing or extra chromosomes are aneuploid. A failed PGT-A cycle typically means that none of the embryos tested were euploid, so there were no embryos suitable for transfer.

    This outcome can happen for various reasons, including maternal age, embryo development patterns, or chance. It does not necessarily mean you cannot conceive, but it does indicate that your current cycle did not produce a transferable embryo.

    First Steps After a Failed PGT-A Cycle

    After receiving your results, take time to process the news. Then, schedule a follow-up appointment with your fertility clinic to discuss the outcome in detail. During this meeting, you can review your cycle data, ask questions, and explore options for future attempts.

    Reviewing Your Cycle Data

    Ask your doctor to explain the number of eggs retrieved, how many fertilized, how many developed to the blastocyst stage, and how many were biopsied. Understanding these numbers can help identify where the drop-off occurred. For example, if few embryos reached the biopsy stage, the issue may be related to egg or sperm quality rather than the testing itself.

    Discussing Embryo Quality and Testing

    Your doctor may review the morphology (appearance) of the embryos and the results of the biopsy. Sometimes, embryos that look good under a microscope still have chromosomal abnormalities. Your doctor can explain whether any embryos were mosaic (a mix of normal and abnormal cells) and what that might mean for future cycles.

    Questions to Ask Your Doctor

    Prepare a list of questions for your follow-up appointment. Consider asking:

    • How many embryos were tested, and what were the specific results?
    • Were there any embryos that could be re-biopsied or re-tested?
    • What factors might have contributed to the aneuploidy?
    • Are there any additional tests you recommend for me or my partner?
    • What changes could we make in a future cycle to improve outcomes?

    These questions can help you understand your situation and feel more informed about your options.

    Exploring Alternative Testing Options

    If you had a failed PGT-A cycle, you might wonder if other types of genetic testing could be helpful. PGT-M (for monogenic disorders) and PGT-SR (for structural rearrangements) are used for specific genetic conditions, not for general aneuploidy screening. Your doctor can explain whether these tests are relevant to your situation.

    In some cases, your clinic may suggest additional testing on the embryos, such as re-biopsy or extended culture, but these options depend on the embryos’ viability and your clinic’s protocols. Always ask about the risks and benefits of any additional testing.

    Considering Next Steps

    After a failed PGT-A cycle, you have several potential paths forward. Your doctor can help you weigh the pros and cons based on your medical history and goals.

    Planning a New Cycle

    You may choose to undergo another IVF cycle with PGT-A. Your doctor might adjust your medication protocol, add supplements, or recommend lifestyle changes to improve egg or sperm quality. It is important to discuss the timing—some clinics recommend waiting a cycle or two to allow your body to recover.

    Exploring Donor Options

    If repeated cycles produce no euploid embryos, you might consider using donor eggs or sperm. This is a personal decision that involves medical, emotional, and legal considerations. Your clinic can provide information about donor programs in Thailand, but you should verify the legal and logistical details directly with them.

    Considering Transfer of Untested Embryos

    Some patients choose to transfer an embryo without PGT-A testing, especially if they have few embryos. This option carries a higher risk of aneuploidy, but it may be appropriate for some individuals. Your doctor can explain the potential outcomes and help you make an informed choice.

    Emotional and Practical Support

    A failed PGT-A cycle can be emotionally challenging. It is normal to feel grief, frustration, or anxiety. Consider seeking support from a counselor who specializes in fertility issues, or joining a support group. Your clinic may have resources or referrals.

    Practically, you may need to consider the financial implications of another cycle. Costs for IVF and genetic testing in Thailand vary, so ask your clinic for a detailed breakdown of fees and what is included. You may also want to check with your insurance provider about coverage.

    Checklist for Your Follow-Up Appointment

    • Bring a list of questions and concerns.
    • Ask for a copy of your cycle summary and test results.
    • Discuss any lifestyle changes or supplements you are considering.
    • Clarify the timeline for starting a new cycle, if applicable.
    • Ask about the costs and what is included in a future cycle.

    Taking these steps can help you feel more in control and prepared for your next appointment.

    Moving Forward

    A failed PGT-A cycle is not the end of your fertility journey, but it is a significant hurdle. By reviewing your results with your doctor, asking the right questions, and exploring your options, you can make informed decisions about your next steps. Remember that every cycle is different, and your doctor can provide personalized guidance based on your unique situation.

    For more information about PGT in Thailand, visit our PGT in Thailand page. You can also browse our guides for additional resources, or check our FAQ for common questions.

    Frequently asked questions

    What does a failed PGT-A cycle mean?

    A failed PGT-A cycle means that none of the embryos tested were found to have the correct number of chromosomes (euploid), so there were no embryos suitable for transfer. This can happen for various reasons, including maternal age or embryo development issues.

    Can I re-test embryos after a failed PGT-A cycle?

    In some cases, embryos may be re-biopsied or re-tested, but this depends on the embryos' viability and your clinic's protocols. Ask your doctor if any of your embryos are suitable for additional testing.

    What are my options after a failed PGT-A cycle?

    Options may include starting a new IVF cycle with adjusted protocols, considering donor eggs or sperm, or transferring an untested embryo. Your doctor can help you weigh the pros and cons based on your medical history and goals.

    How long should I wait before trying again?

    The recommended waiting time varies by individual and clinic. Some doctors suggest waiting one or two menstrual cycles to allow your body to recover. Discuss the timing with your fertility specialist.

    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 Costs in Thailand: A Practical Guide

    If you are exploring IVF with preimplantation genetic testing for aneuploidy (PGT-A) in Thailand, one of the first questions is likely about cost. PGT-A adds a layer of genetic screening to IVF, and its price can vary widely depending on the clinic, the number of embryos tested, and what is included in the package. This guide explains the typical components of PGT-A pricing in Thailand, what to look for in a quote, and how to compare options without surprises.

    At a Glance: PGT-A Cost Considerations

    • PGT-A cost is usually separate from the base IVF cycle fee.
    • Pricing may be per embryo or per cycle, and often includes biopsy and genetic analysis.
    • Additional fees may apply for embryo freezing, shipping, or consultation.
    • Always ask for a detailed breakdown to understand what is and isn’t covered.

    What Is PGT-A and Why Does It Affect Cost?

    PGT-A is a genetic test performed on embryos created through IVF. It checks for the correct number of chromosomes, which can help identify embryos that may have a higher chance of implanting and developing. Because PGT-A requires specialized laboratory equipment and expertise, it adds to the overall cost of an IVF cycle.

    The cost of PGT-A in Thailand is not a fixed number. It depends on several factors, including the clinic’s pricing structure, the number of embryos biopsied, and whether the test is performed locally or sent to an external lab. Some clinics offer PGT-A as part of a package, while others charge it separately.

    Typical Components of PGT-A Pricing

    When you receive a quote for PGT-A, it may include several components. Understanding these can help you compare prices fairly.

    Embryo Biopsy

    This is the procedure where a few cells are removed from each embryo. The biopsy is performed by an embryologist and requires specialized equipment. Some clinics include this in the PGT-A fee, while others may charge it separately.

    Genetic Analysis

    The biopsied cells are sent to a genetics laboratory for analysis. This is the core of PGT-A testing. The cost may vary depending on the technology used (such as next-generation sequencing) and whether the lab is on-site or external.

    Embryo Freezing

    After biopsy, embryos are usually frozen while waiting for results. Freezing and storage fees may be separate or included in the package. If you need to store embryos for several months, this can add to the total cost.

    Consultation and Counseling

    Genetic counseling before and after testing is often recommended. Some clinics include this in the package, while others charge an additional fee.

    How PGT-A Cost Compares to Total IVF Cost

    PGT-A is an additional expense on top of the standard IVF cycle. The total cost of IVF in Thailand includes medications, monitoring, egg retrieval, and embryo transfer. PGT-A can represent a significant portion of the overall budget, but it is important to consider it as part of the full treatment plan.

    When comparing costs, ask for a comprehensive quote that includes both the IVF cycle and PGT-A. Some clinics offer package deals that bundle these services, which may be more cost-effective than paying separately.

    Questions to Ask When Comparing Quotes

    To get a clear picture of PGT-A costs, ask each clinic for a detailed breakdown. Here are key questions to include:

    • Is PGT-A priced per embryo or per cycle?
    • Does the quote include the embryo biopsy and genetic analysis?
    • Are embryo freezing and storage fees included?
    • Are there additional charges for shipping samples to an external lab?
    • What happens if no embryos are suitable for testing?
    • Are there any discounts for testing multiple embryos?
    • Is genetic counseling included?

    Understanding Package Deals

    Some clinics offer PGT-A as part of an IVF package. These packages may include a set number of embryos tested, or they may have a flat fee for the entire cycle. While packages can simplify budgeting, they may not cover all scenarios. For example, if you have more embryos than the package includes, you may need to pay extra.

    Always read the fine print and ask what happens if you need additional testing or if the cycle is cancelled.

    Next Steps: Your Checklist

    1. Shortlist clinics that offer PGT-A and request a detailed quote.
    2. Compare the components included in each quote, not just the total price.
    3. Ask about additional fees for embryo storage, shipping, or repeat testing.
    4. Consider the clinic’s experience with PGT-A and the technology they use.
    5. Factor in the cost of medications and other IVF-related expenses.
    6. Plan for potential extra costs, such as genetic counseling or follow-up consultations.

    By asking the right questions and understanding what is included, you can make an informed decision about PGT-A in Thailand that fits your budget and needs.

    Frequently asked questions

    Is PGT-A cost in Thailand per embryo or per cycle?

    It varies by clinic. Some charge per embryo tested, while others offer a flat fee per cycle that covers a certain number of embryos. Always ask for the pricing structure to understand how you will be billed.

    What is usually included in a PGT-A quote?

    A typical quote may include the embryo biopsy, genetic analysis, and sometimes embryo freezing. However, some clinics charge these separately. Always request an itemized breakdown to see what is covered.

    Are there additional costs beyond the PGT-A fee?

    Yes, you may encounter extra costs such as embryo storage, shipping to an external lab, or genetic counseling. Ask about these potential fees upfront to avoid surprises.

    Can I negotiate PGT-A pricing with a clinic?

    Some clinics may offer package deals or discounts for testing multiple embryos. It is reasonable to ask if there are any flexible options, but be aware that pricing is often set based on laboratory costs.

    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.

  • Questions to Ask Before Starting PGT in Thailand

    If you are considering preimplantation genetic testing (PGT) as part of your IVF journey in Thailand, it is natural to have many questions. PGT can provide valuable information about embryos before transfer, but it is not a guarantee of pregnancy or a healthy child. This guide offers a practical checklist of questions to ask your clinic before starting PGT, helping you understand what the test can and cannot tell you.

    At a Glance: Key Questions to Ask

    • Which type of PGT is recommended for my situation, and why?
    • What are the limitations of PGT, and what can it not detect?
    • How many embryos might be lost during testing, and what is the risk of no embryo being suitable for transfer?
    • What are the costs involved, and what is included in the quoted price?
    • How will results be explained, and what support is available for decision-making?

    Understanding PGT: Types and Purpose

    PGT is a set of techniques used to screen embryos for genetic abnormalities before implantation. There are three main types:

    • PGT-A (Aneuploidy Screening): Checks for the correct number of chromosomes. Aneuploidy (missing or extra chromosomes) is a common cause of implantation failure and 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 structural changes in chromosomes, such as translocations or inversions, which can affect embryo development.

    Your clinic will recommend a specific type based on your medical history, age, and genetic risk factors. It is important to understand that PGT is not a routine test for everyone; it is typically offered when there is a medical indication.

    Questions About Test Type and Suitability

    Before starting PGT, clarify which test is appropriate for you and why. Ask:

    • Which type of PGT do you recommend for my situation, and what is the medical rationale?
    • Are there any alternatives to PGT that I should consider?
    • How does my age or medical history influence the recommendation?
    • Is PGT mandatory for my treatment, or is it optional?

    Understanding the purpose of the test helps you make an informed choice. For example, PGT-A is often used to improve the chances of a successful transfer, but it does not guarantee a live birth.

    Questions About Limitations and What PGT Cannot Tell You

    PGT has limitations. It cannot detect all genetic conditions, and a normal result does not guarantee a healthy baby. Ask your clinic:

    • What conditions can this test detect, and what conditions are not covered?
    • What is the accuracy rate of the test, and are there risks of false positives or false negatives?
    • Can PGT identify all chromosomal abnormalities, or only certain ones?
    • Does a normal PGT result guarantee a successful pregnancy or a healthy child?

    It is essential to have realistic expectations. PGT is a screening tool, not a guarantee.

    Questions About Embryo Loss and Testing Risks

    PGT involves removing a few cells from the embryo, which carries a small risk of damage. Additionally, not all embryos will be suitable for testing or transfer. Ask:

    • How many embryos typically survive the biopsy process?
    • What is the risk that no embryo will be suitable for transfer after testing?
    • How does the clinic handle embryos that are abnormal or inconclusive?
    • Are there any risks to the embryo from the biopsy procedure?

    Understanding these risks helps you prepare emotionally and financially for the possibility that you may not have a transferable embryo.

    Questions About Costs and Financial Planning

    PGT adds to the overall cost of IVF. Costs can vary widely depending on the type of test, the number of embryos, and the clinic. Ask for a detailed breakdown:

    • What is the total cost of PGT, and what does it include (e.g., biopsy, laboratory fees, genetic counseling)?
    • Are there additional costs for each embryo tested, or is it a flat fee?
    • What happens if the test needs to be repeated or if results are inconclusive?
    • Are there any payment plans or packages available?

    Be sure to get all cost information in writing and clarify what is not included, such as medications or additional consultations.

    Questions About the Testing Process and Timeline

    Understanding the process helps you plan. Ask:

    • How long does the PGT process take, and how will it affect my IVF timeline?
    • When will I receive the results, and how will they be communicated?
    • Will I need to have a frozen embryo transfer (FET) after PGT, or can fresh transfer be done?
    • How many embryos are typically needed to proceed with PGT?

    PGT usually requires a frozen transfer because the biopsy and testing take time. Your clinic will guide you through the schedule.

    Questions About Results and Decision-Making

    Interpreting PGT results can be complex. Ask how your clinic supports you:

    • How will the results be explained to me, and will I have a genetic counseling session?
    • What are my options if the results show abnormalities?
    • Can I choose which embryos to transfer, and what is the clinic’s policy on transferring mosaic embryos (embryos with a mix of normal and abnormal cells)?
    • What support is available for emotional or ethical decisions?

    Your clinic should provide clear, non-directive counseling to help you make decisions that align with your values.

    Next Steps: Your Pre-Test Checklist

    Before you start PGT in Thailand, take these steps:

    1. Gather your medical records, including any genetic test results.
    2. Prepare a list of questions from this guide and bring it to your consultation.
    3. Ask for a written cost estimate and a clear explanation of the testing process.
    4. Consider seeking independent genetic counseling to fully understand the implications.
    5. Take time to reflect on your personal and family goals before making decisions.

    Remember, PGT is a personal choice. It can provide valuable information, but it is not right for everyone. Your clinic should help you weigh the benefits and limitations based on your unique situation.

    For more information, explore our PGT in Thailand guide, visit our guides section, or check our FAQ for common questions.

    Frequently asked questions

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

    PGT-A screens for an abnormal number of chromosomes (aneuploidy), PGT-M tests for specific single-gene disorders, and PGT-SR detects structural changes in chromosomes. Your clinic will recommend the appropriate type based on your medical history and genetic risk.

    Does PGT guarantee a healthy baby?

    No. PGT can reduce the risk of transferring embryos with certain genetic abnormalities, but it cannot guarantee a successful pregnancy or a healthy child. It is a screening tool with limitations.

    How much does PGT cost in Thailand?

    Costs vary by clinic, type of test, and number of embryos. It is important to ask for a detailed breakdown of what is included and any additional fees. Confirm all costs in writing before starting.

    What is the risk of embryo loss during PGT?

    The biopsy procedure carries a small risk of embryo damage, and not all embryos may survive the testing process. Additionally, some embryos may be abnormal and not suitable for transfer. Your clinic can provide specific data based on their experience.

    Can I choose which embryos to transfer after PGT?

    Yes, in most cases you can decide which embryos to transfer, but policies may vary regarding mosaic embryos. Discuss your options and the clinic's policy during your consultation.

    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-M vs PGT-A for Single Gene Disorders in Thailand

    Understanding PGT-M and PGT-A

    If you and your partner carry a known genetic condition, you may be exploring IVF with preimplantation genetic testing (PGT). Two common types are PGT-M (for monogenic disorders) and PGT-A (for aneuploidy). While both involve testing embryos before transfer, they answer different questions. PGT-M looks for a specific inherited condition, while PGT-A checks for the correct number of chromosomes. This article explains the difference in purpose, process, and prerequisites, and why PGT-M is not a substitute for PGT-A.

    At a Glance

    • PGT-M: Tests for a specific single-gene disorder (e.g., cystic fibrosis, thalassemia). Requires prior genetic workup.
    • PGT-A: Screens for chromosomal abnormalities (aneuploidy) that can affect implantation or lead to miscarriage.
    • PGT-SR: For structural rearrangements like translocations; sometimes grouped with PGT-A.
    • Not interchangeable: PGT-M does not replace PGT-A, and vice versa.

    What Is PGT-M?

    PGT-M (preimplantation genetic testing for monogenic disorders) is used when one or both partners carry a known genetic mutation for a single-gene condition. The test identifies embryos that have inherited the disorder, allowing transfer of unaffected embryos. It is a targeted test: it looks for the specific mutation(s) you carry.

    Prerequisites for PGT-M

    PGT-M requires a prior genetic workup. This typically includes genetic testing of the parents to identify the exact mutation, and often testing of other family members to establish a genetic link. The IVF clinic and genetic laboratory need this information to design a personalized test for your embryos. Without this workup, PGT-M cannot be performed.

    What Is PGT-A?

    PGT-A (preimplantation genetic testing for aneuploidy) screens embryos for the correct number of chromosomes. Aneuploidy—having too many or too few chromosomes—is a common cause of implantation failure and miscarriage. PGT-A is not targeted to a specific disease; it is a general screen for chromosomal abnormalities.

    When Is PGT-A Used?

    PGT-A is often recommended for women of advanced maternal age, couples with recurrent miscarriage, or previous failed IVF cycles. However, it can be used in any IVF cycle. It does not require prior genetic testing of the parents.

    Key Differences at a Glance

    Aspect PGT-M PGT-A
    Purpose Detect a specific single-gene disorder Screen for chromosomal abnormalities
    Target Specific mutation(s) in the family All chromosomes (or a subset)
    Prerequisite Prior genetic workup of parents None (but may be combined with PGT-M)
    Result Embryo affected/unaffected for the condition Embryo euploid/aneuploid
    Use Couples with known genetic conditions General screening, often for age-related risk

    Why PGT-M Is Not a Substitute for PGT-A

    PGT-M and PGT-A are complementary, not interchangeable. PGT-M only looks at the specific mutation you carry; it does not check for other chromosomal abnormalities. An embryo that is unaffected for your genetic condition could still have aneuploidy, which may lead to implantation failure or miscarriage. Conversely, PGT-A does not tell you whether an embryo carries a specific genetic disorder. Some couples may choose to have both tests performed on the same embryo biopsy.

    What About PGT-SR?

    PGT-SR (preimplantation genetic testing for structural rearrangements) is used when a parent has a chromosomal rearrangement, such as a translocation. It identifies embryos with unbalanced chromosomes. In some classifications, PGT-SR is grouped under PGT-A, but it is a distinct test. If you have a known translocation, your clinic may recommend PGT-SR.

    Process Overview

    Both PGT-M and PGT-A involve the same basic IVF steps: ovarian stimulation, egg retrieval, fertilization, embryo culture, and biopsy. The biopsy is typically performed on day 5 or day 6 embryos (blastocyst stage), removing a few cells from the trophectoderm (future placenta). The cells are then sent to a genetic laboratory for analysis. The main difference is the type of genetic test performed on the biopsied cells.

    Limitations and Considerations

    No genetic test can guarantee a healthy baby. PGT-M and PGT-A are screening tools that reduce the risk of transferring an affected embryo, but they have limitations:

    • Mosaicism: Embryos may have a mix of normal and abnormal cells, which can complicate results.
    • Technical errors: Although rare, laboratory errors can occur.
    • Not all conditions: PGT-M is only available for specific single-gene disorders; it cannot test for all genetic conditions.
    • Cost and time: PGT adds cost and time to an IVF cycle, and not all clinics offer the same testing platforms.

    It is important to discuss the limitations with your clinic and genetic counselor.

    Questions to Ask Your Clinic

    • What type of PGT do you recommend for our situation, and why?
    • Do you offer PGT-M and PGT-A, and can they be combined?
    • What genetic workup is required before PGT-M?
    • How long does the testing take, and how does it affect the IVF timeline?
    • What are the costs for PGT-M and PGT-A, and are they separate?
    • How are mosaic embryos handled?

    Next Steps

    1. Confirm your genetic diagnosis and whether PGT-M is applicable.
    2. Consult with an IVF clinic in Thailand that offers PGT services.
    3. Undergo the required genetic workup with a qualified genetic counselor.
    4. Discuss whether PGT-A should be added to your cycle.
    5. Review the clinic’s laboratory accreditation and success rates (ask for their own data).

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

    Frequently asked questions

    Can PGT-M and PGT-A be done at the same time?

    Yes, in many cases both tests can be performed on the same embryo biopsy. The biopsied cells are split, and separate analyses are run for the specific mutation (PGT-M) and chromosomal status (PGT-A). However, this depends on the laboratory's capabilities and the quality of the biopsy. Discuss with your clinic whether combined testing is available.

    Do I need genetic testing before PGT-M?

    Yes, PGT-M requires prior genetic testing of the parents to identify the exact mutation. This is often done through a blood or saliva sample. The laboratory needs this information to design a personalized test for your embryos. Without this workup, PGT-M cannot be performed.

    Is PGT-M more expensive than PGT-A?

    PGT-M is generally more expensive than PGT-A because it requires a personalized test design and often involves additional workup. However, costs vary by clinic and the specific genetic condition. You should ask your clinic for a detailed breakdown of costs for each test.

    Does PGT-M guarantee a baby without the genetic condition?

    No, PGT-M is highly accurate but not 100% guaranteed. There is a small risk of misdiagnosis due to technical limitations or mosaicism. It is important to discuss the accuracy and limitations with your clinic and consider confirmatory prenatal testing if desired.

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    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.