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  • Can I Choose the Sex of My Baby with PGT in Thailand? Legal and Ethical Considerations

    Can you choose the sex of your baby with PGT in Thailand?

    The short answer is: No, not for non-medical reasons. In Thailand, the use of preimplantation genetic testing (PGT) to select an embryo’s sex for family balancing or personal preference is not permitted by law. However, PGT can reveal the sex of embryos as part of medical testing, and in very limited medical circumstances, sex selection may be allowed to prevent serious sex-linked genetic disorders. This article explains the legal framework, ethical considerations, and what you need to know if you are considering PGT in Thailand.

    What does Thai law say about sex selection?

    Thailand’s Medical Council regulations and the Protection of the Embryo and Fetus for Medical Research Act (unofficial translation) prohibit the use of assisted reproductive technology (ART) for sex selection unless there is a clear medical indication. The law aims to prevent gender discrimination and uphold ethical standards in reproductive medicine. While the exact wording may vary, the consensus among Thai fertility specialists is that non-medical sex selection is not allowed.

    This means that even if PGT can determine whether an embryo is XX (female) or XY (male), the clinic cannot use that information to choose which embryo to transfer based on sex alone. The decision to transfer embryos must be based on medical criteria, such as chromosomal normality or absence of a specific genetic disease.

    What is PGT and how does it relate to sex?

    Preimplantation genetic testing (PGT) is a technique used during IVF to screen embryos for genetic abnormalities before transfer. There are different types:

    • PGT-A (aneuploidy screening): Checks for extra or missing chromosomes, which includes the sex chromosomes (X and Y). This test can reveal the sex of the embryo as a byproduct.
    • PGT-M (monogenic disorders): Tests for specific single-gene diseases, such as cystic fibrosis or thalassemia. If the disease is sex-linked (e.g., Duchenne muscular dystrophy), the test may also identify the sex.
    • PGT-SR (structural rearrangements): Detects chromosomal rearrangements like translocations, which may also involve sex chromosomes.

    In all cases, the primary purpose is medical. The sex information is incidental, and clinics are legally bound not to use it for selection unless medically justified.

    When might sex selection be medically allowed?

    There are rare medical scenarios where selecting an embryo’s sex may be permitted:

    • Prevention of sex-linked genetic disorders: For example, if a mother carries a mutation for hemophilia (which primarily affects males), the clinic may select female embryos to avoid the disease.
    • Severe congenital conditions affecting one sex: In some cases, a condition may be so severe that it is considered a medical reason to select against that sex.

    These exceptions require approval from the clinic’s ethics committee and possibly the Thai Medical Council. The decision is made on a case-by-case basis, and the couple must provide medical documentation.

    Ethical considerations

    The ban on non-medical sex selection reflects broader ethical concerns:

    • Gender equality: Allowing sex selection could reinforce gender stereotypes and lead to imbalanced sex ratios.
    • Embryo status: Selecting embryos based on sex treats them as commodities rather than potential life.
    • Social impact: In some cultures, preference for one sex (often male) can lead to discrimination and demographic imbalances.

    Thailand’s approach aligns with many countries, including the UK, Australia, and most of Europe, where non-medical sex selection is prohibited. However, it differs from countries like the United States, where sex selection is generally allowed.

    What if you want to know the sex for family balancing?

    Family balancing—the desire to have a child of a particular sex to achieve a more balanced family—is not considered a medical indication in Thailand. Therefore, it is not a legal basis for sex selection. Some patients may consider traveling to other countries where it is permitted, but that involves different legal and ethical frameworks.

    Questions to ask your clinic

    If you are considering PGT in Thailand and are curious about sex selection, here are important questions to discuss with your fertility clinic:

    • Does your clinic offer PGT-A, PGT-M, or PGT-SR? What are the medical indications?
    • Under what circumstances, if any, does your clinic allow sex selection?
    • What is the process for obtaining ethics committee approval for medical sex selection?
    • Can you tell me the sex of my embryos as part of PGT results? (Note: Some clinics may disclose this information, but they cannot use it for selection.)
    • What are the legal consequences if a clinic is found to be performing non-medical sex selection?

    It is also wise to consult with a legal expert familiar with Thai reproductive law, as regulations can change.

    Alternatives and considerations

    If sex selection is important to you, you may want to explore options in other countries where it is legal. However, be aware of the ethical, legal, and medical implications. Always verify the credentials of any clinic and ensure they follow local laws.

    For patients in Thailand, the focus should remain on the medical benefits of PGT: reducing the risk of genetic disorders and improving the chances of a healthy pregnancy. The sex of the baby is a secondary consideration that, by law, cannot be the primary reason for embryo selection.

    Summary

    • Non-medical sex selection using PGT is illegal in Thailand.
    • PGT can reveal embryo sex as a byproduct, but this information cannot be used for selection.
    • Medical exceptions exist for preventing serious sex-linked genetic diseases, subject to ethics approval.
    • Always confirm current regulations with your clinic and legal advisor.

    For more information, see our FAQ and guides, or contact us for personalized assistance.

    Frequently asked questions

    Is it legal to choose the sex of my baby with PGT in Thailand?

    No, it is not legal for non-medical reasons. Thai law prohibits using PGT for sex selection unless there is a medical indication, such as preventing a serious sex-linked genetic disorder.

    Can PGT tell me the sex of my embryos?

    Yes, PGT-A and other forms of PGT can reveal the sex chromosomes, so the sex of each embryo can be known. However, clinics are not allowed to use this information to select embryos for transfer based on sex alone.

    What are the medical exceptions for sex selection in Thailand?

    Sex selection may be permitted to avoid passing on a severe sex-linked genetic disease (e.g., hemophilia, Duchenne muscular dystrophy). This requires approval from the clinic's ethics committee and possibly the Thai Medical Council.

    Can I go to Thailand for IVF and then have sex selection in another country?

    That would involve separate legal and medical processes. You would need to comply with the laws of both countries. It is important to consult with legal experts and clinics in each jurisdiction.

    What should I ask my clinic about sex selection?

    Ask whether they offer PGT, under what conditions they disclose embryo sex, and whether they have ever obtained ethics approval for medical sex selection. Also inquire about the legal framework they operate under.

    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 Does PGT Work in Thailand? A Step-by-Step Guide for International Patients

    What Is PGT and Why Is It Used?

    Preimplantation genetic testing (PGT) is a technique used alongside in vitro fertilization (IVF) to screen embryos for genetic abnormalities before transfer to the uterus. It helps identify embryos with the correct number of chromosomes (PGT-A), specific single-gene disorders (PGT-M), or structural rearrangements (PGT-SR). PGT is not a guarantee of a healthy pregnancy or live birth, and it is not suitable for every patient. Your fertility specialist will help determine if PGT is appropriate based on your medical history and family planning goals.

    Step 1: IVF Cycle and Embryo Development

    The PGT process begins with a standard IVF cycle. You will undergo ovarian stimulation to produce multiple eggs, which are then retrieved and fertilized with sperm in the laboratory. The resulting embryos are cultured for 5–6 days until they reach the blastocyst stage. At this point, the embryo has two distinct cell types: the inner cell mass (which becomes the fetus) and the trophectoderm (which becomes the placenta). Only embryos that develop to the blastocyst stage are suitable for biopsy.

    Step 2: Embryo Biopsy

    On day 5 or 6 of development, a skilled embryologist performs a biopsy. Using a laser and a fine pipette, the embryologist removes 3–5 cells from the trophectoderm. This is done carefully to minimize any impact on the embryo’s viability. The biopsied cells are then sent for genetic analysis. The embryo itself is frozen (vitrified) while awaiting results.

    Step 3: Genetic Analysis

    The biopsied cells undergo genetic testing in a specialized laboratory. The type of analysis depends on the indication:

    • PGT-A (Aneuploidy Testing): Screens for the correct number of chromosomes. Embryos with an abnormal number (aneuploid) are less likely to implant or may lead to miscarriage.
    • PGT-M (Monogenic Testing): Detects specific single-gene disorders such as cystic fibrosis, sickle cell disease, or thalassemia. This requires prior knowledge of the genetic mutation in the family.
    • PGT-SR (Structural Rearrangement Testing): Identifies embryos with balanced or unbalanced chromosomal rearrangements, such as translocations or inversions.

    Thailand follows international standards for genetic testing, and laboratories use validated techniques such as next-generation sequencing (NGS) for PGT-A and polymerase chain reaction (PCR) or NGS for PGT-M and PGT-SR. The analysis typically takes 1–2 weeks, depending on the complexity.

    Step 4: Result Interpretation

    Results are reported as:

    • Euploid: Normal chromosome number (for PGT-A) or unaffected (for PGT-M/SR). These embryos are prioritized for transfer.
    • Aneuploid: Abnormal chromosome number. These embryos are generally not transferred.
    • Mosaic: A mix of normal and abnormal cells. The clinical significance of mosaicism is still being studied, and transfer decisions are made on a case-by-case basis.
    • Inconclusive: The biopsy sample did not yield sufficient DNA for analysis. Re-biopsy may be possible in some cases.

    It is important to discuss results with your genetic counselor or fertility specialist to understand the implications for your specific situation.

    Step 5: Frozen Embryo Transfer

    Once results are available, a euploid or unaffected embryo is selected for transfer. The embryo is thawed and transferred into the uterus in a subsequent menstrual cycle. The timing of the transfer is coordinated with your natural cycle or a hormone replacement protocol.

    Alternatives and Limitations

    PGT is not the only option. Alternatives include:

    • Prenatal testing (chorionic villus sampling or amniocentesis) during pregnancy.
    • Donor eggs or sperm to avoid inherited genetic conditions.
    • Natural conception with genetic counseling.

    Limitations of PGT include:

    • Not all embryos reach the blastocyst stage for biopsy.
    • PGT cannot detect all genetic disorders or guarantee a healthy baby.
    • There is a small risk of embryo damage during biopsy.
    • Mosaic results can be difficult to interpret.

    PGT is a powerful tool, but it is not a guarantee of pregnancy or a healthy child. Discuss all options thoroughly with your medical team.

    What International Patients Should Know

    Thailand has a well-established reputation for fertility care, with many clinics offering PGT services that adhere to international standards. As an international patient, you will need to plan for travel, accommodation, and time in Thailand. The entire process—from initial consultation to embryo transfer—can take several weeks to months, depending on your cycle and testing requirements.

    Key considerations include:

    • Medical records: Bring all relevant medical history, genetic reports, and prior fertility treatments.
    • Legal aspects: Confirm the legal status of PGT for your specific indication (e.g., sex selection may be restricted).
    • Costs: Obtain a detailed cost breakdown from your clinic, including IVF, biopsy, genetic testing, and embryo storage.
    • Support: Consider working with a patient coordinator who can assist with logistics and communication.

    For more information, explore our PGT in Thailand overview, browse our guides, or check the FAQ for common questions.

    Frequently asked questions

    How long does the PGT process take in Thailand?

    The entire process from IVF stimulation to embryo transfer typically takes 6–8 weeks, but this can vary depending on your cycle, the type of PGT, and laboratory timelines. Confirm with your clinic for an individualized timeline.

    Is PGT legal in Thailand?

    PGT is available in Thailand for medical indications such as preventing genetic disorders. However, regulations may vary, and some uses (like sex selection for non-medical reasons) may be restricted. Always verify current laws with your clinic or legal advisor.

    Can I choose the sex of my embryo with PGT in Thailand?

    Sex selection is generally not permitted for non-medical reasons in Thailand. PGT may be used to avoid sex-linked genetic disorders. Discuss your specific situation with your clinic.

    What is the success rate of PGT in Thailand?

    Success rates depend on many factors including maternal age, embryo quality, and the specific genetic condition. There are no guaranteed outcomes. Ask your clinic for their most recent data relevant to your case.

    Do I need to stay in Thailand for the entire PGT cycle?

    You will need to be in Thailand for egg retrieval and embryo transfer. The genetic analysis takes 1–2 weeks, during which you may return home if you wish, but discuss logistics with your clinic.

    Continue your research

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

  • How to Read Your PGT Results from a Thailand Lab

    Understanding PGT Results

    Preimplantation Genetic Testing (PGT) is a technique used during IVF to screen embryos for genetic abnormalities before transfer. Results from a Thailand lab typically fall into categories such as euploid, aneuploid, mosaic, or inconclusive. This guide explains these terms and what they mean for your next steps.

    Types of PGT

    PGT-A (Aneuploidy Screening)

    PGT-A checks embryos for the correct number of chromosomes. A normal result is called euploid, meaning the embryo has the expected 46 chromosomes. An abnormal result is aneuploid, indicating missing or extra chromosomes. Some embryos show a mix of normal and abnormal cells, known as mosaic. Occasionally, the lab cannot give a clear result, labeled inconclusive.

    PGT-M (Monogenic Disorders)

    PGT-M screens for specific single-gene disorders such as cystic fibrosis or thalassemia. Results indicate whether the embryo carries the disease-causing mutation, is unaffected, or is a carrier (if relevant).

    PGT-SR (Structural Rearrangements)

    PGT-SR detects chromosomal structural changes like translocations or inversions. Results show whether the embryo has a balanced or unbalanced rearrangement.

    Interpreting Your Results

    Euploid

    A euploid embryo has the correct number of chromosomes and is considered chromosomally normal. For PGT-A, this is generally the preferred category for transfer, as it has the highest chance of implantation and a healthy pregnancy. However, euploid does not guarantee a successful pregnancy or a healthy baby.

    Aneuploid

    An aneuploid embryo has an abnormal chromosome count, such as trisomy (extra chromosome) or monosomy (missing chromosome). Most aneuploid embryos will not implant or will miscarry. Some may result in a child with a condition like Down syndrome. Transfer of aneuploid embryos is generally not recommended, but you should discuss all options with your doctor.

    Mosaic

    A mosaic embryo contains both normal and abnormal cells. The proportion of abnormal cells is reported as a percentage (e.g., 20% mosaic). Mosaic embryos may have reduced implantation potential and a small risk of a chromosomal condition. Some clinics consider transfer of low-level mosaics (<20-30%) after counseling. The decision is complex and should involve a genetic counselor.

    Inconclusive

    An inconclusive result means the lab could not determine the embryo’s chromosomal status due to technical issues, such as failed amplification or poor DNA quality. Your doctor may recommend retesting or consider the embryo for transfer after discussing risks.

    What Each Result Means for Transfer Decisions

    • Euploid: Highest priority for transfer. Discuss with your doctor.
    • Aneuploid: Typically not transferred. Confirm with your clinic’s policy.
    • Mosaic: May be considered for transfer if no euploid embryos are available. Requires genetic counseling.
    • Inconclusive: Options include retesting or transfer after counseling. Not all labs offer retesting.

    Limitations of PGT

    PGT is a screening tool, not a diagnostic test. It cannot detect all genetic conditions, and a normal result does not guarantee a healthy baby. Embryo biopsy carries a small risk of damage. PGT is not recommended for everyone; your doctor can help determine if it is appropriate for your situation.

    Alternatives to PGT

    If PGT is not suitable or you prefer not to test, alternatives include prenatal testing (chorionic villus sampling or amniocentesis) during pregnancy, or using donor eggs or sperm. Discuss these options with your fertility specialist.

    Questions to Ask Your Clinic

    • What type of PGT was performed (PGT-A, PGT-M, PGT-SR)?
    • How are mosaic embryos classified and what are your transfer criteria?
    • What is the lab’s inconclusive rate?
    • Do you offer retesting for inconclusive embryos?
    • What genetic counseling is available?

    Additional Resources

    For more information, see our guides on PGT in Thailand and IVF guides, or visit our FAQ page.

    Frequently asked questions

    What does euploid mean in PGT results?

    Euploid means the embryo has the correct number of chromosomes (46) and is considered chromosomally normal. It is the preferred category for transfer.

    Can a mosaic embryo be transferred?

    Yes, some clinics may transfer mosaic embryos, especially if no euploid embryos are available. The decision involves genetic counseling and depends on the level of mosaicism.

    What should I do if my PGT result is inconclusive?

    Discuss with your doctor whether retesting is possible or if transfer of the embryo is an option after counseling. Not all labs offer retesting.

    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 in Thailand for Women Over 38: What to Expect with PGT

    What to Expect from IVF with PGT in Thailand When You Are Over 38

    If you are over 38 and considering IVF in Thailand, you may be wondering how preimplantation genetic testing (PGT) fits into your journey. PGT can help identify embryos with the correct number of chromosomes (euploid) before transfer, which is especially relevant as the risk of chromosomal abnormalities (aneuploidy) increases with age. This article explains what you can generally expect, the important distinctions to understand, and the questions you should ask your clinic.

    Age-Related Aneuploidy and Euploid Embryo Rates

    As women age, a higher proportion of eggs and resulting embryos are likely to have an abnormal number of chromosomes. This is a natural biological process. For women over 38, the chance of producing a chromosomally normal (euploid) embryo per egg retrieved is lower compared to younger women. However, individual results vary widely. PGT can help identify which embryos are euploid, potentially increasing the chance of a successful pregnancy per transfer and reducing the risk of miscarriage due to chromosomal abnormalities.

    It is important to have realistic expectations. Not every cycle will produce a euploid embryo, and multiple cycles may be needed. Your clinic can provide personalized estimates based on your ovarian reserve, age, and other factors.

    Key Distinctions: PGT-A vs. PGT-M vs. PGT-SR

    PGT has different subtypes. For older women, the most common is PGT for aneuploidy (PGT-A), which screens for extra or missing chromosomes. PGT-M is for single-gene disorders, and PGT-SR is for structural rearrangements. Discuss with your clinic which type is appropriate for your situation.

    Cycle Planning Considerations

    IVF with PGT in Thailand typically involves the following steps:

    • Ovarian stimulation and egg retrieval
    • Fertilization (usually via ICSI)
    • Embryo culture to blastocyst stage (day 5-6)
    • Biopsy of a few cells from the trophectoderm (future placenta)
    • Vitrification (freezing) of biopsied embryos
    • Genetic analysis (results may take days to weeks)
    • Frozen embryo transfer (FET) of a euploid embryo in a subsequent cycle

    Because PGT requires freezing embryos, you will likely have a delay between retrieval and transfer. Plan for at least two menstrual cycles for a complete PGT cycle.

    Uncertainties and Variables

    No test can guarantee a healthy baby. PGT reduces but does not eliminate the risk of miscarriage or chromosomal conditions. Embryos can be mosaic (a mix of normal and abnormal cells), and interpretation of results can be complex. Additionally, not all embryos survive the biopsy and freezing process. Your clinic should explain the limitations and success rates based on their own data.

    Questions to Ask Your Clinic

    Before proceeding, consider asking:

    • What is your experience with PGT for women over 38?
    • What are the estimated euploid rates for my age group?
    • How many eggs or blastocysts should I aim for to have a reasonable chance of at least one euploid embryo?
    • What is the turnaround time for PGT results?
    • What are the costs for PGT, and are there any package options?
    • How do you handle mosaic embryos?
    • What is your live birth rate per euploid embryo transfer for women over 38?

    Related Reading

    For more information, see our FAQ and Guides. If you have specific questions, contact us.

    Frequently asked questions

    What is the chance of a euploid embryo for a woman over 38?

    The chance varies by individual age and ovarian reserve. Generally, the proportion of euploid embryos declines with age. Your clinic can provide estimates based on your specific situation.

    Does PGT improve the chance of live birth for older women?

    PGT can help select euploid embryos for transfer, which may reduce miscarriage risk and improve per-transfer success rates. However, it does not guarantee live birth, and the overall chance depends on having at least one euploid embryo.

    How long does a PGT cycle take in Thailand?

    A full cycle with PGT typically spans two menstrual cycles: one for egg retrieval and embryo biopsy, and another for frozen embryo transfer after results are 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 Choose Between PGT-A and PGT-M for IVF in Thailand

    What Are PGT-A and PGT-M?

    Preimplantation genetic testing (PGT) is performed on embryos created through in vitro fertilization (IVF) before transfer to the uterus. Two common types are PGT-A and PGT-M.

    • PGT-A (Preimplantation Genetic Testing for Aneuploidy) screens embryos for abnormal numbers of chromosomes (aneuploidy). It helps identify embryos with the correct chromosome count (euploid), which may have a higher chance of implantation and lower risk of miscarriage due to chromosomal errors.
    • PGT-M (Preimplantation Genetic Testing for Monogenic Disorders) detects specific single-gene disorders, such as cystic fibrosis, sickle cell disease, or Huntington’s disease. It is used when one or both parents carry a known genetic mutation.

    A third type, PGT-SR (Preimplantation Genetic Testing for Structural Rearrangements), identifies embryos with balanced or unbalanced chromosomal rearrangements, such as translocations. This article focuses on PGT-A and PGT-M, as they are the most commonly discussed.

    Key Differences in Purpose and Technique

    Aspect PGT-A PGT-M
    Purpose Screen for chromosome number abnormalities Detect specific single-gene disorders
    Who needs it Often recommended for advanced maternal age, recurrent miscarriage, repeated implantation failure, or severe male factor infertility; also used for any patient wanting to reduce aneuploidy risk Couples known to carry a genetic mutation for a serious inherited condition
    Technique Biopsy of 5–10 cells from the trophectoderm (future placenta) on day 5/6; analyzed by next-generation sequencing (NGS) or array comparative genomic hybridization (aCGH) Same biopsy method; then uses polymerase chain reaction (PCR) or other mutation-specific methods to test for the known mutation
    Result Euploid (normal), aneuploid (abnormal), or mosaic (mixed cell lines) Affected, unaffected (carrier or non-carrier), or inconclusive
    Limitations Cannot detect all genetic disorders; mosaicism can complicate interpretation; does not guarantee pregnancy or live birth Requires prior knowledge of the specific mutation; test must be custom-developed for each family; may have technical limitations

    When Are Both PGT-A and PGT-M Needed?

    In some cases, a couple may benefit from both tests. For example:

    • A woman of advanced maternal age who also carries a BRCA1 mutation may want PGT-A to reduce aneuploidy risk and PGT-M to select embryos without the mutation.
    • A couple with a history of recurrent miscarriage and a known single-gene disorder may use PGT-A to identify chromosomally normal embryos and PGT-M to avoid the inherited condition.

    When both tests are performed, the embryo biopsy is the same, but the genetic analysis includes both aneuploidy screening and mutation detection. This is often called combined PGT or PGT-A+PGT-M.

    Example Scenarios

    Scenario 1: Advanced Maternal Age

    A 40-year-old woman with no known genetic disorders may choose PGT-A to select euploid embryos, potentially improving implantation rates and reducing miscarriage risk. PGT-M is not needed.

    Scenario 2: Known Genetic Mutation

    A couple where both partners are carriers of cystic fibrosis may opt for PGT-M to identify embryos that are unaffected. If the female partner is under 35 with no fertility issues, PGT-A may not be necessary, though some clinics offer it as an optional add-on.

    Scenario 3: Both Indications

    A 38-year-old woman who carries a mutation for Huntington’s disease may choose both PGT-A and PGT-M to maximize the chance of a healthy pregnancy.

    How to Decide: Questions to Discuss With Your Doctor

    Choosing between PGT-A and PGT-M—or deciding to use both—requires careful counseling. Consider asking your fertility specialist and genetic counselor:

    • What is my risk of having an embryo with a chromosomal abnormality or a specific genetic disorder?
    • Does my age, medical history, or family history suggest a benefit from PGT-A?
    • Have I or my partner been tested for carrier status of common genetic conditions?
    • What are the success rates and limitations of each test at the clinic I am considering?
    • How will the results affect embryo transfer decisions?
    • What are the costs and timelines for each test?

    Remember that PGT does not guarantee a pregnancy or a healthy baby. It is a screening tool that can reduce certain risks but cannot eliminate all possibilities of genetic or chromosomal conditions.

    Alternatives and Additional Considerations

    For patients who do not wish to undergo PGT, alternatives include:

    • Prenatal testing (chorionic villus sampling or amniocentesis) during pregnancy to diagnose chromosomal or genetic conditions.
    • Non-invasive prenatal testing (NIPT) for common aneuploidies, though it is a screening test, not diagnostic.
    • Donor eggs or sperm to avoid passing on genetic disorders.
    • Natural conception with or without carrier screening and prenatal diagnosis.

    Each option has its own benefits, risks, and limitations. A genetic counselor can help you weigh these choices based on your personal values and medical situation.

    Next Steps

    If you are considering IVF with PGT in Thailand, start by consulting a fertility clinic that offers comprehensive genetic testing services. Ask about their experience with PGT-A and PGT-M, the laboratory they use, and the counseling support available. For more information, explore our PGT in Thailand overview, guides, and FAQ.

    Frequently asked questions

    Can PGT-A detect all genetic disorders?

    No, PGT-A only screens for abnormal numbers of chromosomes. It does not detect single-gene disorders or structural rearrangements. For specific genetic conditions, PGT-M or PGT-SR is required.

    Is PGT-M always necessary if I am a carrier of a genetic mutation?

    Not necessarily. If the condition is recessive and your partner is not a carrier, the risk of an affected child is low. However, if both partners are carriers, or if you have an autosomal dominant condition, PGT-M may be recommended. Discuss your specific situation with a genetic counselor.

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

    Yes, many clinics offer combined PGT (PGT-A+PGT-M) using the same embryo biopsy. This allows screening for both chromosomal abnormalities and a specific genetic mutation.

    Does PGT guarantee a healthy baby?

    No. PGT reduces the risk of transferring embryos with certain chromosomal or genetic abnormalities, but it cannot guarantee a pregnancy, live birth, or a child free from all health conditions. Some abnormalities may not be detectable, and there is always a small risk of misdiagnosis.

    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 for Single Gene Disorders in Thailand: Process and Cost

    What Is PGT-M?

    Preimplantation Genetic Testing for Monogenic disorders (PGT-M) is a technique used during IVF to identify embryos that carry a specific single gene disorder. It is designed for couples where one or both partners are known carriers of a genetic condition, such as cystic fibrosis, Huntington’s disease, or thalassemia. PGT-M allows embryologists to biopsy embryos and test them for the specific mutation before transfer, with the goal of selecting embryos that are unaffected.

    It is important to understand that PGT-M does not guarantee a pregnancy or a healthy child. It is a screening tool that reduces the risk of passing on a known genetic condition, but it cannot detect all possible genetic abnormalities or ensure embryo viability.

    PGT-M vs. Other PGT Types

    PGT-M is distinct from PGT-A (aneuploidy testing) and PGT-SR (structural rearrangement testing). PGT-A screens for abnormal numbers of chromosomes, while PGT-SR detects chromosomal structural changes. PGT-M focuses specifically on single gene mutations. Some clinics may offer combined testing, but this should be discussed with your provider.

    The Process of PGT-M in Thailand

    1. Pre-Testing and Genetic Counseling

    Before starting PGT-M, you must have a confirmed genetic diagnosis. This typically requires genetic reports from a certified laboratory showing the specific mutation(s) in the carrier(s). Many clinics require a genetic counseling session to discuss inheritance patterns, testing limitations, and implications for the child.

    2. Probe Development

    PGT-M requires a customized genetic probe for your family’s mutation. This is a laboratory process where markers linked to the mutation are identified. Probe development can take several weeks to months, depending on the complexity of the mutation and the laboratory’s workload. Some clinics may have pre-validated probes for common mutations, which can shorten the timeline.

    You will need to provide blood samples from both partners and, if available, from an affected child or other family members. The probe is then validated before it can be used on embryos.

    3. IVF Cycle and Embryo Biopsy

    Once the probe is ready, you proceed with an IVF cycle. Ovarian stimulation, egg retrieval, and fertilization are performed as usual. Embryos are cultured to the blastocyst stage (day 5 or 6), and a few cells are biopsied from the trophectoderm (future placenta). The biopsy is then sent to the genetics laboratory for analysis.

    4. Genetic Analysis and Embryo Selection

    The laboratory uses the custom probe to test each embryo for the mutation. Results typically take 1–2 weeks. Embryos are classified as unaffected (free of the mutation), affected (carrying the mutation), or inconclusive. Only unaffected embryos are considered for transfer.

    5. Embryo Transfer and Follow-Up

    A frozen embryo transfer (FET) is usually performed in a subsequent cycle. After transfer, prenatal diagnosis (e.g., chorionic villus sampling or amniocentesis) is recommended to confirm the genetic status of the pregnancy, as PGT-M is highly accurate but not 100%.

    Timeline Overview

    The entire process from initial consultation to embryo transfer can take 4–8 months or longer. Key steps include:

    • Genetic counseling and report review: 1–2 weeks
    • Probe development: 4–12 weeks (or longer for rare mutations)
    • IVF cycle (stimulation to biopsy): 4–6 weeks
    • Genetic analysis: 1–2 weeks
    • Frozen embryo transfer: 4–8 weeks after analysis

    These are general estimates; actual timelines vary by clinic and individual circumstances.

    Cost Considerations

    The cost of PGT-M in Thailand varies widely depending on the clinic, the complexity of the probe, and the number of embryos tested. Typical cost components include:

    • Genetic counseling and report review fees
    • Probe development fee (often a one-time cost per mutation)
    • IVF cycle costs (medications, monitoring, egg retrieval, lab fees)
    • Embryo biopsy fee
    • PGT-M analysis fee per embryo
    • Embryo freezing and storage fees
    • Frozen embryo transfer cycle costs

    Some clinics offer package prices that include multiple cycles or a set number of embryos. It is essential to request a detailed cost breakdown from your chosen clinic. Prices are typically quoted in Thai baht or US dollars, and payment plans may be available.

    Because exact figures are time-sensitive and clinic-specific, we recommend contacting clinics directly for current pricing.

    Required Documents and Preparations

    To begin the PGT-M process, you will need:

    • Genetic test reports confirming the mutation(s) in the carrier(s)
    • Medical records related to your fertility and general health
    • Blood samples from both partners (and possibly affected family members) for probe development
    • Passports and visas for travel to Thailand (if applicable)

    Confirm with your clinic whether they require original documents or certified translations.

    Questions to Ask Your Clinic

    • What is the estimated timeline for probe development and the full cycle?
    • What is the cost of probe development, and is it refundable if the cycle is canceled?
    • How many embryos are typically needed for a reasonable chance of an unaffected embryo?
    • What is the accuracy rate of PGT-M for our specific mutation?
    • Do you offer combined PGT-A and PGT-M testing? What are the pros and cons?
    • What happens if no unaffected embryos are available?
    • What prenatal testing do you recommend after a PGT-M pregnancy?

    Limitations and Risks

    PGT-M is not foolproof. Risks include:

    • No embryos may be unaffected, especially if the carrier is homozygous or if few embryos are produced.
    • Inconclusive results may occur, requiring additional testing or discarding the embryo.
    • Mosaicism (mixed cell lines) can complicate interpretation.
    • Biopsy may damage the embryo, though the risk is low with experienced labs.
    • PGT-M does not test for all genetic disorders; only the specific mutation is analyzed.

    It is crucial to have realistic expectations and discuss all options with your genetic counselor and fertility specialist.

    Alternatives to PGT-M

    If PGT-M is not suitable or available, alternatives include:

    • Prenatal diagnosis (CVS or amniocentesis) during a natural pregnancy, with the option to terminate if affected.
    • Donor gametes (egg or sperm) from a non-carrier.
    • Preimplantation genetic testing using polar body biopsy (less common).
    • Adoption or remaining child-free.

    Each option has its own ethical, emotional, and practical considerations.

    Further Reading

    For more information, explore our PGT in Thailand overview, patient guides, and frequently asked questions.

    Frequently asked questions

    How long does PGT-M probe development take in Thailand?

    Probe development typically takes 4 to 12 weeks, but can be longer for rare or complex mutations. Some clinics have pre-validated probes for common mutations, which can reduce the time. Confirm the estimated timeline with your chosen clinic.

    What genetic reports are needed for PGT-M?

    You need a confirmed genetic diagnosis from a certified laboratory showing the specific mutation(s) in the carrier(s). Reports should include the gene name, mutation details, and inheritance pattern. Some clinics also require reports from affected family members for probe validation.

    Is PGT-M covered by insurance in Thailand?

    Insurance coverage for PGT-M is rare and varies by policy. Most patients pay out-of-pocket. Check with your insurance provider and clinic for any possible reimbursement or package deals.

    Can PGT-M be combined with PGT-A?

    Yes, many clinics offer combined PGT-A and PGT-M testing on the same biopsy. This screens for both chromosomal abnormalities and the specific single gene disorder. Discuss the additional cost and potential benefits with your clinic.

    What happens if all embryos are affected?

    If no unaffected embryos are available, options include using donor gametes, considering prenatal diagnosis in a future natural pregnancy, or exploring adoption. Your clinic and genetic counselor can help you explore alternatives.

    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 for Chromosomal Abnormalities in Thailand: A Guide for Patients

    What Is Preimplantation Genetic Testing (PGT)?

    Preimplantation genetic testing (PGT) is a technique used during in vitro fertilization (IVF) to screen embryos for genetic or chromosomal abnormalities before transfer. It is not a guarantee of a healthy pregnancy or live birth, but it can help select embryos with a lower risk of certain conditions. In Thailand, PGT is available at several fertility centers, and the technology is broadly divided into three main types: PGT-A, PGT-M, and PGT-SR.

    PGT-A: Testing for Aneuploidy

    PGT-A (preimplantation genetic testing for aneuploidy) screens embryos for an abnormal number of chromosomes, known as aneuploidy. Humans typically have 46 chromosomes (23 pairs). An extra or missing chromosome can lead to conditions such as Down syndrome (trisomy 21) or Turner syndrome (monosomy X), and often results in implantation failure or miscarriage.

    How PGT-A Works

    During an IVF cycle, embryos are cultured for 5–6 days until they reach the blastocyst stage. A few cells are biopsied from the trophectoderm (the outer layer that becomes the placenta) and sent for genetic analysis. The embryo is then frozen while the results are processed. PGT-A uses techniques such as next-generation sequencing (NGS) or array comparative genomic hybridization (aCGH) to count the chromosomes.

    Who Might Consider PGT-A?

    PGT-A is often recommended for patients with:

    • Advanced maternal age (typically 35 or older)
    • Recurrent miscarriage (two or more pregnancy losses)
    • Previous aneuploid pregnancy
    • Severe male factor infertility
    • Repeated IVF failure

    However, not all patients need PGT-A. Younger patients with no history of miscarriage or genetic disorders may have a low risk of aneuploidy, and the added cost and procedure may not be justified. Discuss your individual risk factors with your fertility specialist.

    Understanding PGT-A Results

    Results are reported as:

    • Euploid: Normal number of chromosomes. These embryos have the highest chance of implantation and a healthy pregnancy.
    • Aneuploid: Abnormal number of chromosomes. These embryos are unlikely to result in a live birth and are typically not transferred.
    • Mosaic: A mix of normal and abnormal cells. Mosaic embryos may have reduced potential, but some can still lead to healthy pregnancies. The decision to transfer a mosaic embryo should be made with genetic counseling.

    It is important to note that PGT-A cannot detect all genetic disorders, and a euploid result does not guarantee a healthy baby.

    PGT-SR: Testing for Structural Rearrangements

    PGT-SR (preimplantation genetic testing for structural rearrangements) is designed for patients who carry balanced chromosomal rearrangements, such as translocations or inversions. These individuals have a normal total amount of genetic material but have chromosomes that are rearranged. While they are usually healthy, they are at increased risk of producing embryos with unbalanced rearrangements, which can lead to miscarriage or birth defects.

    How PGT-SR Works

    The process is similar to PGT-A: embryos are biopsied at the blastocyst stage, and the cells are analyzed to determine whether the chromosomal rearrangement is balanced or unbalanced. PGT-SR often uses the same technology as PGT-A (e.g., NGS) but with specialized analysis to detect the specific rearrangement.

    Who Might Consider PGT-SR?

    PGT-SR is typically offered to:

    • Individuals or couples known to carry a balanced translocation or inversion
    • Patients with recurrent miscarriage or a history of a child with an unbalanced rearrangement

    If you have a known chromosomal rearrangement, genetic counseling can help you understand the risks and whether PGT-SR is appropriate.

    Understanding PGT-SR Results

    Results indicate whether the embryo has:

    • Balanced (normal or balanced carrier): The embryo has a normal chromosome structure or carries the same balanced rearrangement as the parent. These embryos are suitable for transfer.
    • Unbalanced: The embryo has extra or missing genetic material due to the rearrangement. These embryos are unlikely to result in a healthy pregnancy and are typically not transferred.

    As with PGT-A, PGT-SR cannot detect all genetic issues, and a balanced result does not guarantee a healthy baby.

    PGT-M: Testing for Monogenic Disorders

    PGT-M (preimplantation genetic testing for monogenic disorders) is used to detect single-gene disorders such as cystic fibrosis, sickle cell disease, or Huntington’s disease. It is relevant for patients with a known genetic mutation in the family. PGT-M requires a custom test to be developed for each family, which takes time and additional cost. While not directly about chromosomal abnormalities, PGT-M may be combined with PGT-A or PGT-SR in some cases.

    Limitations and Considerations

    PGT is a powerful tool but has important limitations:

    • Not 100% accurate: There is a small risk of misdiagnosis due to mosaicism, technical error, or contamination.
    • Embryo biopsy risk: Although rare, the biopsy procedure may damage the embryo.
    • No guarantee of pregnancy: Even a euploid embryo may fail to implant or miscarry due to other factors.
    • Cost: PGT adds significant expense to an IVF cycle. In Thailand, costs vary by clinic and the number of embryos tested. Confirm exact pricing with your chosen clinic.
    • Time: Testing takes several weeks, so embryos must be frozen and transferred in a subsequent cycle.

    Alternatives to PGT

    For some patients, alternatives may be considered:

    • Prenatal testing: Chorionic villus sampling (CVS) or amniocentesis during pregnancy can diagnose chromosomal abnormalities, but these tests carry a small risk of miscarriage and cannot be used to select embryos.
    • Donor eggs or sperm: Using gametes from a screened donor can reduce the risk of chromosomal abnormalities, especially in cases of advanced maternal age or known genetic disorders.
    • Natural conception with genetic counseling: Some couples may choose to conceive naturally and undergo prenatal testing, accepting the risk of miscarriage or affected pregnancy.

    Your fertility specialist can help you weigh the options based on your medical history and personal values.

    What to Discuss with Your Clinic in Thailand

    When considering PGT in Thailand, ask your clinic about:

    • Which types of PGT are offered (PGT-A, PGT-SR, PGT-M)
    • The laboratory’s experience and accreditation
    • Costs for biopsy, testing, and embryo freezing
    • Turnaround time for results
    • Success rates for PGT cycles (note: these vary widely and should be interpreted cautiously)
    • Genetic counseling services

    For more information, see our PGT in Thailand overview, patient guides, and frequently asked questions.

    Frequently asked questions

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

    PGT-A screens for an abnormal number of chromosomes (aneuploidy), while PGT-SR detects unbalanced structural rearrangements like translocations. PGT-A is used for general aneuploidy risk, and PGT-SR is for patients with known balanced rearrangements.

    Who should consider PGT for chromosomal abnormalities?

    Patients with advanced maternal age, recurrent miscarriage, previous aneuploid pregnancy, or known chromosomal rearrangements may benefit. However, not everyone needs PGT; discuss your specific situation with a fertility specialist.

    Can PGT guarantee a healthy baby?

    No. PGT reduces the risk of transferring embryos with certain chromosomal abnormalities, but it cannot detect all genetic conditions, and there is still a chance of miscarriage or other complications.

    How long does PGT take in Thailand?

    After embryo biopsy, results typically take 1–2 weeks. Embryos are frozen while waiting, so transfer occurs in a later cycle. Confirm exact timelines with your clinic.

    What are the risks of embryo biopsy?

    The biopsy is generally safe, but there is a small risk of embryo damage or reduced viability. The procedure is performed by experienced embryologists to minimize risk.

    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 vs PGT-SR: Which Genetic Test Is Right for Your IVF in Thailand

    What Is Preimplantation Genetic Testing (PGT)?

    Preimplantation genetic testing (PGT) is a set of techniques used to screen embryos created through in vitro fertilization (IVF) for genetic abnormalities before transfer to the uterus. PGT is performed on a few cells biopsied from an embryo at the blastocyst stage (typically day 5 or 6 of development). The goal is to help select embryos that are more likely to result in a healthy pregnancy, but it is important to understand that PGT does not guarantee a successful pregnancy or a healthy child. The three main types of PGT are PGT-A, PGT-M, and PGT-SR, each designed for different clinical scenarios.

    PGT-A: Screening for Chromosomal Aneuploidy

    What PGT-A Screens For

    PGT-A (preimplantation genetic testing for aneuploidy) checks embryos for the correct number of chromosomes. A normal human cell should have 46 chromosomes (23 pairs). Aneuploidy—having too many or too few chromosomes—is a common cause of implantation failure, miscarriage, and conditions such as Down syndrome (trisomy 21). PGT-A identifies embryos with a normal chromosome count (euploid) versus those with an abnormal count (aneuploid).

    Who Might Consider PGT-A

    • Women of advanced maternal age (typically 35 and older), as the risk of aneuploidy increases with age.
    • Couples with a history of recurrent miscarriage, which may be due to chromosomal abnormalities.
    • Couples with repeated IVF implantation failure.
    • Individuals with a known balanced translocation (though PGT-SR is more specific for structural rearrangements).
    • Any patient who wishes to reduce the chance of transferring an aneuploid embryo, though it is not a guarantee.

    Limitations of PGT-A

    PGT-A cannot detect all genetic disorders, such as single-gene diseases (e.g., cystic fibrosis) or structural chromosomal rearrangements. It also cannot guarantee that a euploid embryo will implant or result in a live birth. Mosaicism—where an embryo has both normal and abnormal cells—can lead to ambiguous results. Additionally, the biopsy process carries a small risk of embryo damage, though this is low in experienced laboratories.

    PGT-M: Testing for Single-Gene Disorders

    What PGT-M Screens For

    PGT-M (preimplantation genetic testing for monogenic disorders) is used to detect specific inherited single-gene conditions. This test is tailored to a particular genetic mutation known to run in a family, such as cystic fibrosis, Huntington’s disease, sickle cell anemia, or Tay-Sachs disease. PGT-M requires prior knowledge of the specific mutation and often involves creating a customized test for the couple.

    Who Might Consider PGT-M

    • Couples where one or both partners carry a known genetic mutation for a serious inherited disorder.
    • Couples who have had a child with a genetic condition and wish to avoid passing it on.
    • Individuals with a family history of a genetic disease who have undergone genetic counseling and testing.

    Limitations of PGT-M

    PGT-M is highly specific and cannot screen for other genetic abnormalities unless combined with PGT-A. The test development process can take weeks to months, and not all mutations are testable. PGT-M reduces but does not eliminate the risk of having an affected child; rare recombination events or technical errors can occur. Genetic counseling is essential before and after testing.

    PGT-SR: Detecting Structural Chromosomal Rearrangements

    What PGT-SR Screens For

    PGT-SR (preimplantation genetic testing for structural rearrangements) is designed for individuals who carry a balanced structural chromosomal rearrangement, such as a translocation (where a piece of one chromosome attaches to another) or an inversion (where a chromosome segment is reversed). While carriers of balanced rearrangements are usually healthy, their embryos may inherit unbalanced rearrangements, leading to miscarriage or birth defects. PGT-SR identifies embryos with a normal or balanced chromosome structure.

    Who Might Consider PGT-SR

    • Couples where one partner is a known carrier of a balanced translocation or inversion.
    • Couples with a history of recurrent miscarriage or infertility linked to a structural rearrangement.
    • Individuals who have been diagnosed through karyotype testing.

    Limitations of PGT-SR

    PGT-SR cannot detect all types of chromosomal abnormalities; it focuses on the specific rearrangement. It may be combined with PGT-A for comprehensive screening. As with other PGT methods, there is a small risk of misdiagnosis, and not all embryos will be suitable for transfer.

    How to Choose the Right Test

    The decision between PGT-A, PGT-M, and PGT-SR depends on your medical history, genetic background, and reproductive goals. Here are some general considerations:

    • If you have no known genetic condition but are concerned about age-related chromosomal abnormalities, PGT-A may be appropriate.
    • If you or your partner carries a specific single-gene disorder, PGT-M is the test of choice, often combined with PGT-A.
    • If you have a balanced translocation or inversion, PGT-SR is recommended, sometimes alongside PGT-A.
    • If you have both a single-gene mutation and a structural rearrangement, a combination of tests may be possible.

    It is essential to consult with a fertility specialist and a genetic counselor to determine which test—or combination of tests—is right for you. They will review your medical history, order necessary carrier screening or karyotyping, and explain the implications of test results.

    PGT in Thailand: What to Expect

    Thailand has become a popular destination for IVF with PGT due to its advanced medical facilities and competitive costs. Several fertility centers in Bangkok offer PGT services, including Deep & Harmonicare IVF Center (DHC), Bumrungrad International Hospital, Gift Fertility Clinic, Intrarat Hospital, PMG Hospital, and Prime Fertility Clinic. Each provider has its own laboratory capabilities, genetic testing partnerships, and pricing structures. It is important to verify directly with the clinic whether they offer the specific type of PGT you need, the turnaround time for results, and what is included in the quoted price.

    PGT is typically performed on embryos created through IVF with intracytoplasmic sperm injection (ICSI) to avoid contamination from sperm cells. After biopsy, embryos are frozen (vitrified) while awaiting test results, which can take 1–2 weeks depending on the laboratory. A subsequent frozen embryo transfer (FET) is then scheduled.

    Alternatives and Important Considerations

    PGT is not the only option for genetic screening. Alternatives include:

    • Prenatal diagnostic testing (chorionic villus sampling or amniocentesis) during pregnancy, which can confirm genetic abnormalities but carries a small risk of miscarriage.
    • Non-invasive prenatal testing (NIPT), a blood test that screens for common aneuploidies but is not diagnostic.
    • Carrier screening before conception to identify genetic risks.

    PGT is an elective procedure and is not medically necessary for all patients. It does not guarantee a live birth or a healthy child, and there are ethical considerations regarding embryo selection. Discuss all options thoroughly with your healthcare team.

    Frequently Asked Questions

    Can PGT-A detect all genetic problems?

    No, PGT-A only screens for the correct number of chromosomes. It does not detect single-gene disorders or structural rearrangements. For those, PGT-M or PGT-SR is needed.

    Is PGT covered by insurance in Thailand?

    Insurance coverage for PGT varies widely. Most international patients pay out-of-pocket. Check with your clinic and insurance provider for specific coverage details.

    How long does PGT take?

    After embryo biopsy, results typically take 1–2 weeks. The entire IVF cycle, including PGT and frozen embryo transfer, may take 2–3 months.

    Does PGT harm the embryo?

    The biopsy removes a few cells from the trophectoderm (future placenta), and studies suggest the risk of damage is low when performed by experienced embryologists. However, no procedure is risk-free.

    Next Steps

    If you are considering PGT as part of your IVF journey in Thailand, start by consulting with a fertility specialist and a genetic counselor. They can help you understand which test is appropriate based on your personal and family medical history. For more information, explore our PGT in Thailand guide, other guides, and FAQ section.

    Frequently asked questions

    Can PGT-A detect all genetic problems?

    No, PGT-A only screens for the correct number of chromosomes. It does not detect single-gene disorders or structural rearrangements. For those, PGT-M or PGT-SR is needed.

    Is PGT covered by insurance in Thailand?

    Insurance coverage for PGT varies widely. Most international patients pay out-of-pocket. Check with your clinic and insurance provider for specific coverage details.

    How long does PGT take?

    After embryo biopsy, results typically take 1–2 weeks. The entire IVF cycle, including PGT and frozen embryo transfer, may take 2–3 months.

    Does PGT harm the embryo?

    The biopsy removes a few cells from the trophectoderm (future placenta), and studies suggest the risk of damage is low when performed by experienced embryologists. However, no procedure is risk-free.

    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.

  • Legal Aspects of IVF and PGT in Thailand for Foreigners: A Practical Guide

    Introduction

    International patients considering IVF and preimplantation genetic testing (PGT) in Thailand often have questions about the legal framework. While Thailand is a destination for fertility treatment, the legal landscape can be complex and varies depending on your home country and specific circumstances. This guide provides an overview of key legal aspects to consider, but it does not constitute legal advice. Always consult a qualified Thai lawyer with expertise in reproductive law before making decisions.

    General Legal Framework

    Thailand’s regulations on assisted reproductive technology (ART) are derived from several pieces of legislation and professional guidelines. Foreign patients should be aware that these laws may differ significantly from those in their home countries. It is important to verify current requirements with a Thai lawyer or the relevant authority.

    Embryo Disposition

    One of the most important legal considerations is what happens to embryos created during treatment. In Thailand, the legal status of embryos and the rules for their disposition are subject to specific regulations. Key points to discuss with your clinic and lawyer include:

    • Storage: Embryos can be frozen and stored for future use, but storage periods and conditions vary by clinic. You should confirm the maximum storage duration and any associated costs.
    • Donation: Donating embryos to another couple or for research may be legally complex and requires specific consent. Not all clinics offer this option.
    • Disposal: If you no longer wish to store embryos, you can request their disposal. However, you must provide written consent, and the clinic will have its own procedures.
    • Transfer abroad: Moving embryos to another country involves additional legal and logistical hurdles, including export/import regulations and customs requirements.

    It is essential to discuss embryo disposition options with your clinic and have a clear written agreement before treatment begins.

    Surrogacy Restrictions

    Thailand’s surrogacy laws strictly regulate surrogacy. Key points for foreign patients:

    • Commercial surrogacy is restricted for foreigners. Only altruistic surrogacy may be permitted under certain conditions, and typically only for married Thai couples. Foreigners should confirm current legal options with a Thai lawyer.
    • Foreigners may face limitations in entering surrogacy agreements in Thailand. It is essential to verify the latest legal provisions.
    • Penalties: Violating surrogacy laws can result in criminal penalties, including imprisonment and fines.

    If you are considering surrogacy, you must explore legal options in your home country or other jurisdictions where it is permitted.

    Genetic Testing Limits

    PGT is available in Thailand, but there are legal and ethical boundaries:

    • PGT for medical reasons: Testing for chromosomal abnormalities or single-gene disorders is generally permitted. However, the specific conditions that can be tested may be limited by clinic policies and Thai regulations.
    • PGT for sex selection: Sex selection for non-medical reasons may be prohibited. Some clinics may offer sex selection for medical reasons (e.g., to avoid X-linked disorders), but you should confirm this with the clinic and understand the legal basis.
    • PGT for other traits: Testing for non-medical traits such as eye color or intelligence may not be legally permitted and is not offered by reputable clinics.

    Always ask your clinic for a clear list of conditions they can test for and any legal restrictions that apply.

    Documentation and Consent

    Proper documentation is critical for legal clarity. You should expect to sign the following:

    • Informed consent forms for IVF, ICSI, PGT, and embryo handling.
    • Embryo disposition agreement outlining what will happen to unused embryos.
    • Gamete and embryo ownership agreement clarifying who has rights to the embryos in case of separation, death, or dispute.
    • Medical records release forms if you want your records sent to another doctor.

    All documents should be provided in English (or your preferred language) and explained to you before signing. Keep copies for your records.

    Legal Advice and Next Steps

    Because laws can change and individual circumstances vary, it is essential to:

    • Consult a Thai lawyer who specializes in reproductive law. They can review your specific situation and advise on legal risks.
    • Check your home country’s laws regarding embryo disposition, surrogacy, and genetic testing. Some countries have restrictions that may affect your ability to bring embryos or children back.
    • Contact your chosen clinic for their specific policies and any legal updates.

    For more information on planning your treatment, see our guides on International Patients, Treatment Process, and Patient Resources.

    Frequently Asked Questions

    Frequently asked questions

    Is IVF legal for foreigners in Thailand?

    Yes, IVF is legal for foreigners in Thailand. However, surrogacy is heavily restricted, and commercial surrogacy may be illegal for foreigners. Always consult a Thai lawyer for your specific case.

    Can I choose the sex of my embryo through PGT in Thailand?

    Sex selection for non-medical reasons may be prohibited in Thailand. Some clinics may offer it for medical reasons (e.g., to avoid genetic disorders), but you should confirm with the clinic and understand the legal basis.

    What happens to my embryos if I die or separate from my partner?

    This depends on the agreements you sign with the clinic. It is crucial to have a clear embryo disposition agreement that specifies your wishes in such scenarios. Consult a lawyer to ensure your rights are protected.

    Can I take my embryos out of Thailand?

    Yes, but it involves legal and logistical steps, including export permits and compliance with the destination country's regulations. Contact your clinic and a lawyer for guidance.

    Do I need a visa for IVF treatment in Thailand?

    Most foreign patients enter Thailand on a tourist visa or visa exemption. For longer stays, you may need a medical visa. Check with the Thai embassy or consulate in your country for current 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.

  • PGT-M for Genetic Disorders in Thailand: What International Patients Need to Know

    What Is PGT-M?

    Preimplantation Genetic Testing for Monogenic Disorders (PGT-M) is a technique used during in vitro fertilization (IVF) to screen embryos for specific inherited genetic conditions. It is designed for couples or individuals who carry a known genetic mutation and wish to reduce the risk of passing that condition to their child. PGT-M is not a guarantee of a healthy pregnancy or baby, and it is not suitable for everyone.

    How PGT-M Works

    The PGT-M process involves several steps:

    • IVF cycle: Eggs are retrieved and fertilized with sperm in the laboratory to create embryos.
    • Embryo biopsy: A few cells are removed from each embryo, typically on day 5 or 6 (blastocyst stage).
    • Genetic analysis: The biopsied cells are analyzed to determine whether the embryo carries the specific genetic mutation of concern.
    • Embryo selection: Only embryos that are free of the targeted mutation are considered for transfer to the uterus.

    PGT-M requires prior knowledge of the specific genetic mutation in the family. A custom genetic test must be developed for each family, which can take several weeks to months.

    Which Genetic Disorders Can PGT-M Screen For?

    PGT-M can screen for many monogenic disorders, including but not limited to:

    • Cystic fibrosis
    • Sickle cell disease
    • Tay-Sachs disease
    • Huntington’s disease
    • Spinal muscular atrophy
    • Beta-thalassemia
    • Fragile X syndrome

    The specific conditions that can be tested depend on the laboratory’s capabilities and the availability of a validated test for the mutation. Patients should discuss their specific genetic condition with their fertility center and genetic counselor.

    PGT-M Process in Thailand

    Thailand has become a destination for IVF and PGT services, including PGT-M. The process for international patients typically involves:

    1. Initial consultation: A remote or in-person consultation with a fertility specialist and genetic counselor to review medical history and genetic test results.
    2. Genetic test development: If not already available, a custom test for the specific mutation is developed. This may require blood samples from the couple and sometimes other family members.
    3. IVF cycle: The patient travels to Thailand for the IVF cycle, which includes ovarian stimulation, egg retrieval, fertilization, and embryo culture.
    4. Biopsy and testing: Embryo biopsy is performed at the fertility center, and the cells are sent to a genetics laboratory for analysis.
    5. Embryo transfer: A frozen or fresh embryo that is free of the mutation is transferred to the uterus.

    The entire process can take several months, including the time needed for genetic test development and the IVF cycle.

    Genetic Counseling and Legal Considerations

    Genetic counseling is an essential part of PGT-M. A genetic counselor can help patients understand the implications of their genetic condition, the limitations of testing, and the potential outcomes. In Thailand, genetic counseling services may be available at some fertility centers; patients should confirm availability and language support directly.

    Legal considerations vary by country. Patients should be aware that regulations regarding PGT-M in Thailand may change, and they should seek up-to-date legal advice from relevant authorities. Additionally, some countries have restrictions on embryo selection or the disposal of affected embryos. International patients should consult with their home country’s regulations and consider how they align with the process in Thailand.

    Choosing a Fertility Center for PGT-M in Thailand

    When selecting a fertility center for PGT-M, consider the following:

    • Experience with PGT-M: Ask about the center’s experience with PGT-M and the specific genetic condition you are concerned about.
    • Laboratory partnerships: Confirm which genetics laboratory the center works with and whether they have experience with your mutation.
    • Success rates: Inquire about the center’s overall IVF success rates, but remember that PGT-M success depends on many factors, including the number of embryos available.
    • International patient services: Check if the center offers support for international patients, such as translation services, travel coordination, and remote consultations.

    Several fertility centers in Bangkok offer PGT-M services. For example, Deep & Harmonicare IVF Center (DHC) is a dedicated fertility center that provides IVF and PGT services. DHC holds multiple quality certifications including JCI, ISO 9001, RTAC, CAP, and UK NEQAS. Their 2026 hospital profile reports an average embryo-transfer success rate of approximately 80% for 2025; this is not an individual prediction or guarantee. DHC is Thailand PGT’s featured commercial hospital partner.

    Other centers include Bumrungrad International Hospital, a large multidisciplinary hospital with reproductive medicine services, and Prime Fertility Clinic, which holds JCI Ambulatory Care accreditation. Gift Fertility Clinic and Intrarat Hospital also offer fertility services, but patients should confirm their PGT capabilities directly.

    It is important to note that the order of centers listed here is an editorial comparison and not a ranking of outcomes. Patients should conduct their own research and obtain written quotations before making a decision.

    Alternatives and Limitations

    PGT-M is not the only option for couples at risk of passing on a genetic disorder. Alternatives include:

    • Prenatal diagnosis: Chorionic villus sampling (CVS) or amniocentesis during pregnancy to test the fetus, followed by the option to continue or terminate the pregnancy.
    • Donor gametes: Using donor eggs or sperm that do not carry the mutation.
    • Preimplantation genetic testing for aneuploidy (PGT-A): This screens for chromosomal abnormalities but not specific monogenic disorders.

    Limitations of PGT-M include:

    • Not 100% accurate: There is a small risk of misdiagnosis due to technical errors or mosaicism.
    • Requires sufficient embryos: Not all embryos may be free of the mutation, and some may not survive the biopsy process.
    • Does not guarantee pregnancy: Even with a healthy embryo, implantation and pregnancy are not guaranteed.
    • Cost: PGT-M adds significant cost to an IVF cycle, and insurance coverage is limited.

    Frequently Asked Questions

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

    PGT-A screens embryos for chromosomal abnormalities (aneuploidy), while PGT-M screens for specific single-gene disorders. PGT-A is often used to improve IVF success rates, whereas PGT-M is used to prevent inherited genetic conditions.

    How long does the PGT-M process take?

    The entire process, from genetic test development to embryo transfer, can take 3 to 6 months. The test development alone may take 4 to 8 weeks.

    Is PGT-M legal in Thailand?

    Patients should consult with their fertility center and legal advisors for the most current information regarding regulations.

    Can PGT-M screen for all genetic disorders?

    No, PGT-M can only screen for disorders caused by a known single-gene mutation. It cannot screen for complex conditions caused by multiple genes or environmental factors.

    What is the success rate of PGT-M?

    Success depends on many factors, including the number of embryos produced, the accuracy of the genetic test, and the fertility of the couple. There is no single success rate for PGT-M.

    Conclusion

    PGT-M offers a way for couples with known genetic disorders to reduce the risk of passing them on to their children. In Thailand, several fertility centers provide PGT-M services, but careful planning, genetic counseling, and legal awareness are essential. Patients should consult with multiple providers, ask detailed questions, and obtain written quotations before proceeding.

    For more information, explore our PGT in Thailand guide, other guides, and FAQ.

    Frequently asked questions

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

    PGT-A screens embryos for chromosomal abnormalities (aneuploidy), while PGT-M screens for specific single-gene disorders. PGT-A is often used to improve IVF success rates, whereas PGT-M is used to prevent inherited genetic conditions.

    How long does the PGT-M process take?

    The entire process, from genetic test development to embryo transfer, can take 3 to 6 months. The test development alone may take 4 to 8 weeks.

    Is PGT-M legal in Thailand?

    Patients should consult with their fertility center and legal advisors for the most current information regarding regulations.

    Can PGT-M screen for all genetic disorders?

    No, PGT-M can only screen for disorders caused by a known single-gene mutation. It cannot screen for complex conditions caused by multiple genes or environmental factors.

    What is the success rate of PGT-M?

    Success depends on many factors, including the number of embryos produced, the accuracy of the genetic test, and the fertility of the couple. There is no single success rate for PGT-M.

    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.