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

• PGT in Thailand overview
• PGT and IVF guides
• Frequently asked questions

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.