At a glance
PGT results from a Thai lab typically take 2–4 weeks, but the exact timeline depends on the biopsy method, lab schedule, and genetic testing approach. This guide explains the process and what to ask your clinic.
Understanding PGT Results Timing in Thailand
If you are planning IVF with preimplantation genetic testing (PGT) in Thailand, one of the most common questions is how long it takes to receive results. The short answer is that PGT results typically take between 2 and 4 weeks from the day of embryo biopsy. However, the exact timeline can vary based on several factors, including the type of PGT, the lab’s workflow, and whether the biopsy is performed on day 5 or day 6 embryos.
This article provides a general overview of the PGT timeline in Thailand, explains what influences the turnaround time, and offers practical questions to ask your clinic so you can plan your treatment and travel accordingly.
At a Glance: PGT Timeline Factors
- Biopsy day: Day 5 or day 6 embryo biopsy affects when the sample is sent to the lab.
- Genetic testing method: Next-generation sequencing (NGS) is the most common and takes about 7–14 days for analysis.
- Lab schedule: Some labs run batches weekly, which can add a few days of waiting.
- Transport time: If the biopsy is sent to an external lab, shipping may add 1–2 days.
- Reporting and counseling: After results are ready, the clinic needs time to review and schedule a consultation.
Step-by-Step PGT Timeline
1. Embryo Biopsy (Day 5 or Day 6)
After egg retrieval and fertilization, embryos are cultured to the blastocyst stage (typically day 5 or day 6). A few cells are removed from the trophectoderm (the part that becomes the placenta) for genetic analysis. The biopsy itself takes only a few minutes, but the timing of the biopsy determines when the sample is sent to the lab.
2. Sample Preparation and Shipping (1–2 Days)
Once biopsied, the cells are placed in a special medium and sent to the genetics laboratory. If the lab is on-site at the clinic, this step is immediate. If the lab is off-site, the sample may be shipped overnight. Some clinics use a courier service to ensure the sample arrives within 24 hours.
3. Genetic Analysis (7–14 Days)
The actual genetic testing takes the longest. Most Thai labs use next-generation sequencing (NGS) for PGT-A (aneuploidy screening) and PGT-M (monogenic disorders). The analysis involves amplifying the DNA, sequencing, and interpreting the results. This process typically takes 7 to 14 days, depending on the lab’s workload and the complexity of the test.
4. Result Review and Reporting (1–3 Days)
After the lab completes the analysis, the results are sent to the clinic’s genetic counselor or doctor. The medical team reviews the findings and prepares a report. This step usually takes 1 to 3 days.
5. Patient Consultation (Scheduled Appointment)
Finally, the clinic schedules a consultation to discuss the results with you. This may be done in person or via video call. The timing of this appointment depends on your availability and the clinic’s schedule.
Factors That Can Affect the Timeline
- Type of PGT: PGT-A (for chromosome number) is generally faster than PGT-M (for single gene disorders), which may require additional validation or family studies.
- Lab batching: Some genetics labs run tests in batches rather than continuously. If your sample arrives just after a batch run, you may wait a few extra days for the next batch.
- Embryo development: If embryos reach the blastocyst stage on day 6 instead of day 5, the biopsy is delayed by one day, pushing the entire timeline back.
- Clinic communication: How quickly the clinic schedules your result consultation can vary. Some clinics offer rapid reporting, while others may take a few days to arrange an appointment.
Questions to Ask Your Clinic About PGT Timing
To get a more accurate timeline for your specific situation, consider asking your clinic these questions:
- What is the typical turnaround time for PGT results from your lab?
- Do you use an on-site lab or send samples to an external facility?
- How often does the lab run genetic analyses (e.g., daily, weekly)?
- Will the biopsy be performed on day 5 or day 6 embryos?
- How will I receive the results (phone call, email, in-person consultation)?
- Can the results be discussed via video call if I have returned home?
Planning Your Travel Around PGT Results
Since PGT results take 2–4 weeks, many international patients choose to return home after the embryo biopsy and receive results remotely. However, if you plan to have a frozen embryo transfer (FET) in the same cycle, you may need to stay in Thailand for the entire duration. Discuss with your clinic whether you can travel after biopsy and return for a subsequent cycle.
Keep in mind that the timeline can vary, so it’s wise to allow some flexibility in your travel plans. Some clinics offer a preliminary result within a few days, but this is not standard and should not be relied upon for decision-making.
Next Steps Checklist
- Confirm with your clinic the expected PGT result timeline before starting the cycle.
- Ask about the lab’s batching schedule and whether results are available on weekends.
- Plan for a 2–4 week wait after biopsy before results are discussed.
- Arrange for a remote consultation if you plan to leave Thailand before results are ready.
- Check if your clinic provides a written report that you can share with your local doctor.
Frequently asked questions
Can PGT results be available in less than 2 weeks?
In some cases, results may be available in 10–14 days if the lab runs tests continuously and the biopsy is performed early. However, 2–4 weeks is the typical range, and faster turnaround is not guaranteed.
Does the type of PGT affect the waiting time?
Yes. PGT-A (aneuploidy screening) is usually faster than PGT-M (monogenic disorders) because PGT-M may require additional steps like developing a custom probe or running family studies.
Will I need to stay in Thailand while waiting for PGT results?
Not necessarily. Many patients return home after the biopsy and receive results via video consultation. However, if you plan a fresh transfer or immediate FET, you may need to remain in Thailand. Confirm with your clinic.
How are PGT results delivered?
Most clinics schedule a consultation with a doctor or genetic counselor to explain the results. Some also provide a written report. Ask your clinic about their specific process.
What happens if the lab is delayed?
Delays can occur due to high workload, technical issues, or batching schedules. Your clinic should keep you informed. If you have a tight timeline, discuss contingency plans with your doctor.
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.
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