What Is the Age Limit for IVF with PGT in Thailand?

Is There a Legal Age Limit for IVF with PGT in Thailand?

Thailand does not have a national law that sets a maximum age for undergoing in vitro fertilization (IVF) with preimplantation genetic testing (PGT). Instead, each fertility clinic establishes its own age-related policies based on medical considerations, internal guidelines, and the type of treatment cycle being considered.

For women using their own eggs, many Thai clinics set an upper age limit between 45 and 50 years. This cutoff is not arbitrary—it reflects the well-documented decline in ovarian reserve and egg quality with advancing age, which affects the likelihood of producing enough embryos for testing and transfer. For women over 45, the chance of retrieving viable eggs is significantly reduced, and the risk of chromosomal abnormalities in embryos is higher.

For cycles using donor eggs, age limits are generally more flexible. Since the eggs come from a younger donor, the primary medical considerations shift to the recipient’s uterine health and overall medical fitness for pregnancy. Some clinics may accept recipients up to age 50 or even older, depending on individual health assessments.

Factors That Influence a Clinic’s Decision

When you contact a Thai fertility clinic about IVF with PGT, the clinic will evaluate several factors beyond your chronological age:

• Ovarian reserve: Blood tests (AMH, FSH) and an antral follicle count help estimate how many eggs can be retrieved. Low reserve may lead to a recommendation against own-egg cycles regardless of age.
• Overall health: Chronic conditions such as uncontrolled diabetes, hypertension, or heart disease increase pregnancy risks. Clinics may require clearance from a specialist.
• Uterine health: A healthy uterine lining and absence of fibroids, polyps, or adhesions are important for implantation. Hysteroscopy or ultrasound may be needed.
• Previous pregnancy history: A history of successful pregnancy or live birth may be viewed favorably.
• Body mass index (BMI): Some clinics have BMI cutoffs (e.g., below 35) due to increased anesthesia and pregnancy risks.

It is important to understand that no clinic can guarantee embryo development, a successful pregnancy, or a healthy child. Age-related policies are guidelines, not absolute rules, and each case is reviewed individually.

What About PGT and Age?

PGT is often recommended for women over 35 or 40 because the risk of chromosomal abnormalities in embryos increases with maternal age. However, PGT does not improve egg quality or embryo development—it only screens embryos that are already formed. If few embryos reach the blastocyst stage for biopsy, PGT may not be feasible. Clinics may set a minimum number of embryos required before proceeding with testing.

PGT-A (for aneuploidy) can identify embryos with the correct number of chromosomes, but it cannot detect all genetic conditions or guarantee implantation. PGT-M (for monogenic disorders) and PGT-SR (for structural rearrangements) are available for specific genetic indications and require prior genetic counseling.

Questions to Ask Clinics About Age Limits

Before choosing a clinic, ask these questions directly:

• What is your age limit for IVF using my own eggs? Is it a strict cutoff or a guideline?
• Do you accept patients over 45 for donor-egg cycles? What medical tests do you require?
• How do you assess ovarian reserve and overall health before accepting a patient?
• What is your policy on PGT for women over 40? Do you require a minimum number of embryos?
• Can you provide a written quotation that includes all costs for IVF with PGT, including medications, biopsy, freezing, and storage?

Always request a written quotation and confirm the treating doctor, laboratory pathway, and any age-related conditions in writing.

Important Distinctions and Uncertainties

There is no single answer that applies to all clinics. Age limits are not published in a centralized database, and policies can change. Some clinics may accept women up to 50 for own-egg cycles on a case-by-case basis, while others may have a firm cutoff at 45. The only way to know is to contact the clinic directly with your medical history.

Additionally, age limits for IVF with PGT may differ from age limits for egg donation or surrogacy. If you are considering using a donor or gestational carrier, separate regulations and clinic policies apply.

Finally, remember that age is just one factor. A thorough medical evaluation will provide a clearer picture of your individual chances.

Related Reading

For more information on planning your treatment, see our FAQ and guides. If you have specific questions, contact us for personalized assistance.

Frequently asked questions

What is the typical age limit for IVF with own eggs in Thailand?

Many Thai clinics set an upper age limit between 45 and 50 years for IVF using a woman's own eggs. This is due to the natural decline in egg quantity and quality with age. However, policies vary, and some clinics may accept older patients on a case-by-case basis after medical evaluation.

Is there an age limit for IVF with donor eggs in Thailand?

Age limits for donor-egg cycles are generally more flexible, as the eggs come from a younger donor. Some clinics may accept recipients up to age 50 or older, depending on uterine health and overall medical fitness. Always confirm directly with the clinic.

Does PGT have an age limit?

PGT itself does not have a separate age limit, but it requires embryos to reach the blastocyst stage for biopsy. If few embryos are available due to age-related decline, PGT may not be feasible. Clinics may set a minimum number of embryos before proceeding with testing.

Can I undergo IVF with PGT in Thailand if I am over 45?

It depends on the clinic's policy and your individual health. Some clinics may accept women over 45 for own-egg cycles after a thorough evaluation, while others may recommend donor eggs. Contact clinics directly with your medical history to discuss options.

Continue your research

• Frequently asked questions
• PGT and IVF guides
• Prepare a private case review

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.