- PGT-A tests a few cells from each IVF embryo for missing or extra chromosomes before one is chosen for transfer.
- The UK regulator, the HFEA, rates PGT-A red for increasing the chance of a baby for most patients, green for reducing miscarriage, and grey (not enough evidence) for older women.
- ESHRE does not recommend PGT-A for routine clinical use, and ASRM says its value as a routine test for all IVF patients has not been demonstrated.
- Thai clinics publish PGT-A from 96,000 baht for two embryos, or within IVF packages costing 380,000 to 498,000 baht.
- Ask why PGT-A is recommended for you, how mosaic results are handled, and what the price covers per embryo.
| Clinic | Package | Published price (THB) | What the page says |
|---|---|---|---|
| Bangkok Hospital | PGT-A and Embryo Freezing Package (2 embryos) | 96,000 | PGT-A plus freezing for two embryos, on the doctor's recommendation. Valid to 31 December 2026; the terms name the Fertility Center at Bangkok Heart Hospital. |
| Bangkok Hospital | IVF Package B: IVF with genetic testing and freezing of 2 embryos | 456,000 | Compared with 335,000 for Package A without testing. For patients travelling in for treatment; valid to 31 December 2026. |
| MedPark Hospital | IVF/ICSI with PGT-A (up to 5 embryos) | 380,000 | Adds EmbryoScope monitoring, PGT-A for five embryos and one year's storage to the 280,000 basic package. Thai nationals and residents only. |
| Superior A.R.T. | Worry Free / Superior ICSI (PGT-A) Package | 495,000 (FAQ) or 498,000 (promotion page) | One stimulation and one frozen transfer, with PGT-A, freezing and a year's storage for up to eight embryos. Excludes endometrial preparation. |
| Superior A.R.T. | Estimate: full IVF cycle with PGT-A | 350,000–430,000 (estimate) | Excludes pre-IVF tests of about 30,000; a frozen transfer is estimated separately at 60,000–70,000 plus medication. |
What PGT-A is
Preimplantation genetic testing for aneuploidy (PGT-A), formerly called PGS, is a test carried out during IVF. Embryos are cultured to the blastocyst stage, around day five or six, and an embryologist removes a few cells from the outer layer, the part that would become the placenta. The embryos are frozen while the cells are sent to a genetics laboratory, which counts the chromosomes, commonly using next-generation sequencing (NGS).
Each embryo is then reported as euploid (the expected 46 chromosomes), aneuploid (missing or extra chromosomes), mosaic (a mix of normal and abnormal cells) or, occasionally, without a result. A euploid embryo is then thawed and transferred in a later cycle. Chromosome errors become more common in eggs with age, which is the reasoning behind offering PGT-A, particularly to older patients.
PGT-A is not the same as testing for a known inherited condition. PGT-M (for single-gene conditions such as thalassaemia) and PGT-SR (for chromosome rearrangements) look for a specific problem a family is known to carry, after genetic counselling. That kind of testing has a clear purpose; this guide is about PGT-A as a screening test.
What the evidence says
The HFEA rates treatment add-ons with a traffic-light system. It rates PGT-A red for increasing the chance of having a baby for most fertility patients, meaning that on balance the evidence suggests it may reduce effectiveness. One reason is that testing often leaves fewer embryos available for transfer, and the HFEA says that for most patients the time to a live birth may be longer. It notes there is no evidence from randomised controlled trials that blastocyst-stage PGT-A improves the chance of a baby for most IVF patients.
The HFEA rates PGT-A green for reducing the chance of miscarriage for most patients. That is a real benefit for some people, but reducing miscarriage is not the same as increasing the chance of a baby, and it does not remove the risk. For older women, the HFEA rates PGT-A grey for both outcomes, meaning there is not enough good evidence to rate it either way; evidence for groups such as older women or those with a history of miscarriage mostly comes from secondary outcomes and may be less reliable.
Professional bodies are similarly cautious. ESHRE's 2023 good practice recommendations on add-ons state that PGT-A is currently not recommended for routine clinical use. ASRM's 2024 committee opinion says the value of PGT-A as a routine screening test for all IVF patients has not been demonstrated, noting that recent multicentre randomised trials found similar overall pregnancy outcomes with and without it.
Risks and drawbacks
The HFEA lists several drawbacks. The test can be wrong, missing an abnormality or reporting one that is not there, so embryos that could have become healthy babies may be discarded. Mosaic results are hard to interpret: such embryos may have a lower chance of pregnancy, but healthy births have been reported after their transfer. The biopsy itself can damage an embryo. And if every tested embryo is reported as abnormal, there may be nothing to transfer.
PGT-A does not add known physical risks for the person having treatment beyond those of IVF itself. The main costs are financial, the possible loss of embryos and, for some, the emotional weight of the results.
What PGT-A costs in Thailand
Thai clinics publish PGT-A in two ways: as a separate package or within an IVF package. Bangkok Hospital lists a 96,000-baht package covering PGT-A and freezing for two embryos. MedPark's basic IVF/ICSI package is 280,000 baht and its package with PGT-A for up to five embryos is 380,000 baht, a difference of 100,000 baht that also covers EmbryoScope monitoring and a year's storage; both prices apply only to Thai nationals and residents. Superior A.R.T. publishes an all-inclusive package covering one stimulation, PGT-A for up to eight embryos and one frozen transfer, at 495,000 baht in its FAQ and 498,000 baht on its promotion page.
Because PGT-A is usually priced by the number of embryos tested, the right comparison is per embryo and per outcome. A package for two embryos is cheaper than one for five or eight, but if you produce more blastocysts you may pay again to test the rest. Several other Bangkok clinics list PGT-A, including hospital units and specialist fertility clinics, but do not publish prices; ask them for a written quote.
Comparing PGT-A quotes
Ask each clinic to set out the same items: the embryo biopsy, the laboratory test per embryo and the maximum number covered, freezing and storage of tested embryos, genetic counselling, the frozen embryo transfer and its preparation medication, and the cost of testing any extra embryos. Ask which laboratory does the testing, which method it uses, how often it returns no result, and whether re-biopsy is possible.
Ask about mosaic embryos before you start. Some clinics discard them, some store them, and some will transfer them after counselling. The policy affects how many embryos you may have available, and therefore the value of what you are paying for.
Deciding whether it suits you
PGT-A may appeal to people who want to reduce the chance of miscarriage per transfer, or to avoid a series of transfers of embryos unlikely to implant. For others, especially those with few embryos, it may reduce the overall chance of a baby. The HFEA's advice is that a clinic should be able to explain the evidence for any add-on it offers, and that for most patients a standard cycle of proven treatment is effective without add-ons.
Discuss your own age, history and number of embryos with a fertility specialist, and ask them to explain why they are recommending, or not recommending, PGT-A for you.
Questions to ask about PGT-A
- Why are you recommending PGT-A for me, and what evidence supports it in my situation?
- How many blastocysts would you expect me to have available for testing?
- Which laboratory performs the test, which method does it use, and how often is there no result?
- What is your policy on mosaic embryos?
- How many embryos does the price cover, and what does testing each extra embryo cost?
- Are freezing, storage and the frozen transfer included?
- What would you suggest if all my tested embryos are reported as abnormal?
Frequently asked questions
How much does PGT-A cost in Thailand?
Bangkok Hospital publishes a 96,000-baht package for PGT-A and freezing of two embryos. MedPark's IVF/ICSI package with PGT-A for up to five embryos costs 380,000 baht against 280,000 without it (Thai nationals and residents only). Superior A.R.T. publishes an all-inclusive package at 495,000 or 498,000 baht.
Does PGT-A improve IVF success rates?
For most patients, current evidence says it does not increase the chance of a baby. The HFEA rates it red for this purpose, and ESHRE does not recommend it for routine use. It is rated green for reducing miscarriage.
Is PGT-A worth it for women over 35 or 40?
The HFEA rates PGT-A grey for older women, meaning there is not enough good evidence either way. Some clinics recommend it more often for older patients; ask your specialist to explain the reasoning for you.
Can PGT-A tell the sex of an embryo?
The test counts chromosomes, including the sex chromosomes, but Thailand's 2015 assisted reproduction law prohibits sex selection. Clinics should not use results to choose an embryo by sex.
Does PGT-A mean two trips to Thailand?
Usually, because tested embryos are frozen while results are processed and transferred in a later cycle. Bangkok Hospital's IVF page describes two visits when embryos are frozen for genetic testing.
Sources
- HFEA — Pre-implantation genetic testing for aneuploidy (PGT-A), treatment add-on rating
- HFEA — Treatment add-ons with limited evidence
- ESHRE Add-ons working group (2023) Good practice recommendations on add-ons in reproductive medicine. Human Reproduction 38(11)
- ASRM Practice Committee — The use of preimplantation genetic testing for aneuploidy: a committee opinion (2024)
- HFEA — Intracytoplasmic sperm injection (ICSI)
- Bangkok Hospital — PGT-A and Embryo Freezing Package (2 embryos), checked 24 October 2026
- Bangkok Hospital — Bangkok Fertility Center overview, checked 23 October 2026
- Bangkok Hospital — IVF Package (Bangkok Hospital Headquarters), checked 23 October 2026
- MedPark Hospital — IVF/ICSI Package, checked 23 October 2026
- MedPark Hospital — IVF/ICSI with PGT-A Package (5 embryos), checked 23 October 2026
- Superior A.R.T. — Frequently asked questions (cost estimates), checked 23 October 2026
- Superior A.R.T. — Superior ICSI (PGT-A) Package, checked 24 October 2026
- Stasi A. (2017) Protection for Children Born Through Assisted Reproductive Technologies Act, B.E. 2558: The Changing Profile of Surrogacy in Thailand. Clinical Medicine Insights: Reproductive Health
