PGT Report Interpretation in Thailand: A Plain-English Checklist for International Patients

If you have received a PGT report from a clinic in Thailand, you may be looking at a document filled with abbreviations, laboratory terms, and result categories. This checklist is designed to help you locate the main sections of your report, understand what each part generally describes, and prepare questions for your clinic. It does not interpret your individual results. Only your treating clinic can explain what your specific report means for your care.

At a glance

• PGT reports typically include embryo identifiers, test type, result categories, and limitations.
• PGT-A, PGT-M, and PGT-SR are different tests with different purposes.
• Results are reported in categories, not as guarantees of pregnancy or live birth.
• Ask your clinic to explain any term or result you do not understand.
• Keep a copy of your report and any accompanying consent or counselling notes.

What a PGT report is and is not

A PGT report is a laboratory document that summarises the results of preimplantation genetic testing on embryos created through IVF. It is not a diagnosis of your health, a guarantee of pregnancy, or a prediction of your child’s future health. The report describes what the laboratory observed in the sample it tested, within the limits of the technology used. Your clinic uses this information alongside other clinical factors when discussing possible next steps.

Checklist: sections to locate in your report

Use this checklist as a guide when reading your report. The exact layout varies by laboratory and clinic, so some sections may have different names or be combined.

1. Patient and clinic identifiers

• Your name or a unique patient identifier.
• The name of the clinic or laboratory that issued the report.
• The date the report was issued and, if shown, the date the sample was received.
• A report or accession number that the clinic can use to locate your file.

Check that these details match your own records. If anything looks incorrect, contact your clinic before drawing conclusions from the report.

2. Embryo identification

• A unique embryo ID or code for each embryo tested.
• The developmental stage or day of biopsy, if stated.
• Whether the sample was taken from a day-3 embryo, a blastocyst, or another stage.

Embryo IDs are important because they link each result to a specific embryo. If your report lists several embryos, make sure you can match each result to the correct ID. Ask your clinic if the numbering is not clear.

3. Test type

• The specific PGT test performed: PGT-A, PGT-M, PGT-SR, or another term.
• The technology or method used, if described (for example, next-generation sequencing or array comparative genomic hybridisation).
• The scope of the test: what it was designed to look for and what it does not cover.

PGT-A looks at chromosome number; PGT-M looks for a specific inherited condition; PGT-SR looks at structural chromosome rearrangements. The test type determines how to read the result categories. If your report does not clearly state the test type, ask your clinic to confirm it.

4. Result category for each embryo

• A result term for each embryo, such as euploid, aneuploid, mosaic, affected, unaffected, carrier, or inconclusive.
• Any numerical or graphical data that supports the category.
• Whether the result is considered reportable or not reportable by the laboratory.

Result categories are not the same across all tests. For example, a PGT-A report may use terms like euploid, aneuploid, or mosaic, while a PGT-M report may describe whether an embryo is affected, unaffected, or a carrier for a specific condition. Do not assume that a term from one test means the same thing in another. Ask your clinic to explain the exact meaning of each category in your report.

5. Limitations and caveats

• Statements about the limits of the test, such as the possibility of false results or inconclusive outcomes.
• Notes about mosaicism, technical limitations, or the amount of DNA available.
• Any recommendation for confirmatory testing or genetic counselling.

Limitations are a normal part of a PGT report. They remind readers that no test is perfect and that results should be interpreted in context. If your report includes a limitations section, read it carefully and ask your clinic what it means for your specific situation.

6. Laboratory and clinician details

• The name of the laboratory that performed the test.
• The name of the clinician or genetic counsellor who reviewed the report, if listed.
• Contact information for follow-up questions.

These details help you direct your questions to the right person. If your report does not include a contact, ask your clinic who to speak with about the results.

Understanding PGT-A, PGT-M, and PGT-SR in plain English

PGT-A (preimplantation genetic testing for aneuploidy) checks the number of chromosomes in an embryo. PGT-M (preimplantation genetic testing for monogenic disorders) looks for a specific inherited condition caused by a change in a single gene. PGT-SR (preimplantation genetic testing for structural rearrangements) looks for chromosome structural changes that may affect embryo development. Each test has a different purpose and different result categories. None of them can guarantee a successful pregnancy or a healthy child. Your clinic can explain which test is relevant to your situation and why.

Questions to ask your clinic about your report

• Which test was performed on each embryo, and what does the result category mean for that test?
• Are there any embryos with inconclusive or mosaic results, and what do those terms mean in my case?
• What are the limitations of this test for my embryos?
• How should this report be used in decisions about which embryo to transfer, if any?
• Do you recommend genetic counselling or additional testing before we proceed?
• Can you provide a written explanation of the result categories used in my report?
• Who should I contact if I have more questions after I leave the clinic?

Next-step checklist for international patients

• Request a copy of your full PGT report, including any appendices or limitations sections.
• Ask your clinic for a plain-language explanation of each result category in your report.
• Write down your questions before your follow-up appointment.
• Confirm whether a genetic counsellor is available and how to schedule a session.
• Keep your report and any related correspondence in a safe place for future reference.
• If you are considering a second opinion, ask your clinic how to share your report with another provider.

What this checklist does not do

This checklist helps you locate and understand the structure of a PGT report. It does not interpret your individual results, tell you whether to transfer a particular embryo, or predict your chances of pregnancy. Those decisions belong with your treating clinic and, where appropriate, a genetic counsellor. If any part of your report is unclear, ask your clinic for clarification before making decisions.

For more general information about PGT in Thailand, see our PGT in Thailand guide. International patients can also review information for international patients and browse our guides. If you have a specific question, our FAQ section may help.

Frequently asked questions

What does 'mosaic' mean on a PGT-A report?

Mosaic generally means that the laboratory found a mix of cells with different chromosome numbers in the sample. The significance of a mosaic result can vary, and it is best discussed with your clinic or a genetic counsellor. They can explain what the term means in the context of your specific report and how it may affect decision-making.

Can I get a PGT report explained in English if I don't speak Thai?

Many clinics in Thailand that serve international patients provide reports and consultations in English. However, this is not guaranteed at every clinic. Ask your clinic in advance whether your report will be available in English and whether an English-speaking clinician or genetic counsellor can discuss the results with you.

Does a 'normal' PGT-A result guarantee a healthy baby?

No. PGT-A looks at chromosome number in the cells sampled, but it cannot guarantee a successful pregnancy, a live birth, or a child without health conditions. Other factors, including maternal age, uterine health, and chance, also play a role. Your clinic can explain the limitations of the test in your situation.

What should I do if my report has an 'inconclusive' result?

An inconclusive result means the laboratory could not obtain a clear answer for that embryo. This can happen for technical reasons. Ask your clinic what the inconclusive result means for that embryo and whether any further testing or follow-up is possible.

Can I share my PGT report with a doctor in my home country?

Yes, you can usually request a copy of your report to share with another healthcare provider. Ask your clinic how to obtain a copy and whether they can provide it in a format that is easy to share. The receiving doctor can help you understand the report in the context of your overall health.

Continue your research

• International patient guide
• PGT in Thailand overview
• PGT and IVF guides

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.