How Long Does PGT Take in Thailand? A Timeline for IVF Patients

Understanding the PGT Timeline in Thailand

When planning IVF with preimplantation genetic testing (PGT) in Thailand, one of the most common questions is how long the entire process takes. The answer depends on several factors, including the type of PGT, the laboratory’s workflow, and shipping logistics. This guide provides a general overview of the timeline so you can plan your travel and schedule accordingly. Remember that each clinic and lab may have slightly different procedures, so always confirm specific timelines with your treating clinic.

At a Glance: Key Steps in the PGT Timeline

• Embryo Biopsy: Performed on day 5 or 6 after egg retrieval, when embryos reach the blastocyst stage.
• Biopsy Shipping: Biopsied cells are prepared and shipped to a genetics laboratory, which may take 1–2 days.
• Genetic Testing: The lab performs DNA amplification and analysis. Turnaround time varies by test type (PGT-A, PGT-M, PGT-SR).
• Results Reporting: Results are sent to your clinic, which then shares them with you. This can take additional 1–2 days for review.
• Total Time: From biopsy to final results, the process typically spans 2–4 weeks, but this can vary.

Step 1: Embryo Biopsy (Day 5–6)

After egg retrieval and fertilization, embryos are cultured in the lab until they reach the blastocyst stage, usually on day 5 or 6. At this point, a few cells are gently removed from the trophectoderm (the part that becomes the placenta) for genetic testing. The biopsy itself takes only a few minutes, but the embryo must be of sufficient quality to undergo the procedure. Your clinic will schedule the biopsy based on embryo development.

Step 2: Shipping Biopsied Cells to the Genetics Lab

Once the biopsy is complete, the cell samples are placed in a special medium and shipped to a genetics laboratory. If the lab is located within Thailand, shipping may take just 1 day. If samples are sent to an international lab (common for specialized tests like PGT-M), shipping can take 2–3 days depending on courier services and customs clearance. Some clinics have on-site genetics labs, which can reduce shipping time to zero.

Step 3: Genetic Testing (Variable Duration)

The actual testing time depends on the type of PGT:

• PGT-A (aneuploidy screening): Typically the fastest, with results in 7–14 days.
• PGT-M (monogenic disorders): Requires a customized probe or test development, which can take several weeks to months before the cycle even starts. After biopsy, results may take 2–4 weeks.
• PGT-SR (structural rearrangements): Similar timeline to PGT-A, often 10–14 days.

These are general estimates; actual turnaround times depend on the lab’s workload and the complexity of the test. Some labs offer expedited services for an additional fee.

Step 4: Receiving and Reviewing Results

After the genetics lab completes the analysis, results are sent to your clinic. The clinic’s embryologist and genetic counselor will review the report and prepare a summary for you. This step usually takes 1–2 days. You will then have a consultation with your doctor to discuss which embryos are suitable for transfer.

Factors That Can Affect the Timeline

• Lab location and logistics: International shipping adds time and potential delays (e.g., customs, holidays).
• Type of PGT: PGT-M requires pre-cycle probe development, extending the overall timeline by weeks or months.
• Embryo development: Not all embryos reach blastocyst stage on day 5; some may be biopsied on day 6 or 7, shifting the schedule.
• Lab capacity: Busy periods may slow down testing.
• Clinic protocols: Some clinics batch biopsies or send samples on specific days, adding waiting time.

Questions to Ask Your Clinic

To get a personalized timeline, ask your clinic the following:

• Which genetics laboratory do you work with, and where is it located?
• What is the typical turnaround time for the specific PGT test I need?
• Do you offer expedited testing, and what is the cost?
• How are biopsy samples shipped, and how long does shipping usually take?
• When will I receive the results, and how will they be communicated?

Planning Your Travel and Stay

Since the PGT process takes several weeks after egg retrieval, many international patients plan to stay in Thailand for at least 3–4 weeks to cover the biopsy and initial waiting period. However, you may be able to return home after the biopsy and receive results remotely. Discuss with your clinic whether a follow-up visit is needed for embryo transfer, which typically occurs in a subsequent menstrual cycle after results are available.

Next Steps

• Confirm the PGT timeline with your chosen clinic during your initial consultation.
• Ask about the possibility of remote result disclosure and virtual consultations.
• Plan your travel itinerary with buffer days to accommodate any delays.
• Check with the genetics lab about any additional requirements for sample shipping.

Frequently asked questions

How long does PGT-A take in Thailand?

PGT-A (aneuploidy screening) typically takes 7–14 days from the time the biopsy sample reaches the genetics lab. Including shipping and result reporting, the total time from biopsy to receiving results is usually 2–3 weeks.

Does PGT-M take longer than PGT-A?

Yes, PGT-M (for monogenic disorders) often requires a customized test development before the cycle, which can take several weeks to months. After biopsy, the testing itself may take 2–4 weeks, so the overall timeline is longer.

Can I leave Thailand while waiting for PGT results?

Many patients choose to return home after the biopsy and receive results remotely. However, you should confirm with your clinic whether a follow-up visit is needed for embryo transfer, which is usually scheduled in a later cycle.

What factors can delay PGT results?

Delays can occur due to shipping issues (e.g., customs, holidays), lab workload, or the need for repeat biopsy if the initial sample is insufficient. Your clinic can provide the most accurate estimate based on current conditions.

Continue your research

• IVF in Thailand guide
• Treatment journey
• International patient guide

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.