PGT for Chromosomal Translocation in Thailand: Referral and Counselling Questions

If you or your partner has a known chromosomal rearrangement, you may be researching whether preimplantation genetic testing (PGT) in Thailand could be part of your family-building plan. PGT for structural rearrangements is often called PGT-SR. It is a laboratory step used during IVF to test embryos for the same rearrangement or for unbalanced chromosome patterns. It is not a treatment for the rearrangement itself, and it cannot guarantee a healthy pregnancy or child. This guide outlines the referral and counselling questions that can help you make an informed decision and prepare for conversations with clinicians in Thailand.

At a glance

• PGT-SR is a testing option, not a guarantee of outcome.
• A genetic referral usually starts with confirmation of the rearrangement and a discussion of possible inheritance patterns.
• Counselling should cover what PGT-SR can and cannot detect, and what happens if no suitable embryo is available.
• Thailand has clinics that offer IVF and PGT services, but availability, legal requirements and costs vary. Confirm details directly with the clinic and, where relevant, with your home-country healthcare team.
• Ask about the full pathway: referral, testing, IVF cycle, embryo biopsy, genetic analysis, transfer and follow-up.

What PGT-SR is and is not

PGT-SR is a type of preimplantation genetic testing designed for people who carry a structural chromosomal rearrangement, such as a translocation or inversion. During an IVF cycle, embryos can be biopsied and their chromosomes analysed to identify those that appear balanced or unbalanced. The goal is to help select embryos for transfer, but the test has technical limits. It may not detect all chromosomal issues, and it cannot predict every aspect of a child’s health.

PGT-SR is different from PGT-A, which screens for extra or missing chromosomes across all chromosomes, and PGT-M, which targets a specific single-gene condition. Some clinics may combine tests, but the exact approach depends on your situation and the laboratory’s capabilities. Ask your clinician to explain which test is being recommended and why.

Why a genetic referral matters

A genetic referral is usually the starting point. A clinical geneticist or genetic counsellor can confirm the type of rearrangement, discuss how it might be inherited, and explain the possible implications for pregnancy and future children. They can also help you understand whether PGT-SR is a reasonable option in your case, or whether other pathways such as donor gametes, adoption or accepting the natural chance of a balanced outcome might be considered.

If you are planning to travel to Thailand for treatment, your home-country genetic team can provide documentation and context that a Thai clinic may request. This may include karyotype results, genetic counselling notes and any relevant medical history. The exact documents required will vary, so confirm with the clinic.

Referral pathway: questions to ask at each step

The referral process can feel complex. The following questions are organised by stage to help you prepare.

Before referral

• Who will coordinate my referral to a genetics service?
• What information should I gather before the appointment?
• Should my partner also be tested, even if they have no known rearrangement?
• Are there any costs for genetic counselling in my home country?

During genetic counselling

• What type of rearrangement do I have, and how was it confirmed?
• What are the possible outcomes for a pregnancy, and what is the chance of an unbalanced arrangement?
• How does PGT-SR work in principle, and what are its limitations?
• What alternatives exist, and what are their trade-offs?
• Could my relatives also be at risk, and should they be offered testing?

When considering a clinic in Thailand

• Does the clinic have experience with PGT-SR for my specific type of rearrangement?
• Which laboratory performs the genetic analysis, and what technology is used?
• What are the clinic’s requirements for accepting international patients with a known rearrangement?
• How do they handle communication with my home-country genetic team?
• What is the process if no embryos are suitable for transfer?

Understanding PGT-SR results

PGT-SR results are typically reported as balanced, unbalanced or inconclusive. A balanced result means the embryo appears to have the same rearrangement as the parent, which may or may not lead to health issues depending on the specific rearrangement. An unbalanced result means there is extra or missing chromosomal material, which is often associated with miscarriage or health conditions. Inconclusive results mean the test could not provide a clear answer.

It is important to discuss what each possible result might mean for you, including the option of transferring an embryo with a balanced rearrangement. Some people choose to do so, while others prefer to avoid it. There is no single right answer; counselling can help you clarify your values and priorities.

Limitations and uncertainties

PGT-SR is not a perfect test. It may not detect small imbalances, and it cannot rule out all genetic conditions. Mosaicism, where an embryo has a mix of cells with different chromosomal patterns, can also complicate interpretation. Additionally, the test does not guarantee implantation, ongoing pregnancy or a healthy child. These are important points to discuss with your clinician and genetic counsellor.

Regulations and clinical practices in Thailand may differ from your home country. For example, there may be restrictions on the number of embryos transferred, the use of certain technologies or the handling of genetic information. Always confirm current rules with the clinic and, if needed, with legal or regulatory authorities.

Practical preparation for international patients

If you decide to explore PGT-SR in Thailand, preparation can reduce stress. Consider the following categories, but confirm specifics with the clinic:

• Medical records: Gather karyotype results, genetic counselling reports, fertility history and any previous IVF records. Ask the clinic what format and language they require.
• Travel and logistics: Understand how many trips may be needed, how long you may need to stay, and whether you can do some monitoring locally.
• Costs: Ask for a breakdown of fees for genetic counselling, IVF, embryo biopsy, PGT-SR analysis, embryo storage and transfer. Clarify what is included and what may be extra.
• Legal and ethical considerations: Ask about consent forms, data privacy, embryo disposition and any legal requirements for international patients.
• Support: Consider whether you have access to counselling or support groups, either in Thailand or online, during the process.

Questions to ask a clinic in Thailand

When you contact a clinic, these questions can help you compare options and understand their approach:

1. What is your experience with PGT-SR for my specific rearrangement?
2. Which laboratory analyses the embryos, and what is its accreditation or quality assurance process?
3. What is the typical timeline from initial consultation to embryo transfer?
4. How do you communicate results, and what support is available if results are inconclusive or unfavourable?
5. What are the costs involved, and what payment methods do you accept?
6. What are your policies on embryo storage, donation and disposal?
7. Do you offer counselling services, or can you refer me to a genetic counsellor?
8. What are the legal requirements for international patients, and what documents do I need to provide?

Next steps

Start by speaking with a genetic counsellor or clinical geneticist in your home country if you have not already done so. They can help you understand your rearrangement and the role PGT-SR might play. If you are considering Thailand, research clinics that offer PGT-SR and ask the questions above. You can also read more about PGT in Thailand on our PGT in Thailand page, browse our guides for related topics, and check our FAQ for general information. Remember that this article is educational and not a substitute for personalised medical advice.

Frequently asked questions

What is the difference between PGT-SR and PGT-A?

PGT-SR is designed for people with a known structural chromosomal rearrangement, such as a translocation. It aims to identify embryos with balanced or unbalanced chromosome patterns related to that rearrangement. PGT-A screens for extra or missing chromosomes across all chromosomes, often in the context of advanced maternal age or recurrent miscarriage. They are different tests, and the choice depends on your situation.

Can PGT-SR guarantee a healthy baby?

No. PGT-SR can reduce the chance of transferring an embryo with an unbalanced rearrangement, but it cannot guarantee a healthy pregnancy or child. It has technical limitations, and other genetic or health factors may still be present. Counselling can help you understand the uncertainties.

Do I need a referral from my home doctor to have PGT-SR in Thailand?

Requirements vary by clinic. Some may accept self-referrals, while others may ask for a referral or medical records from your home doctor. It is best to contact the clinic directly to ask what they require for international patients with a known chromosomal rearrangement.

What should I ask about costs for PGT-SR in Thailand?

Ask for a detailed breakdown that includes genetic counselling, IVF medications, monitoring, egg retrieval, embryo biopsy, PGT-SR laboratory analysis, embryo storage and transfer. Clarify whether any additional fees may apply, such as for re-biopsy or extended storage. Costs can vary widely, so compare several clinics.

Is PGT-SR legal in Thailand?

PGT is available in Thailand, but regulations and clinic policies can change. Legal and ethical requirements may differ from your home country. Always confirm current rules with the clinic and, if necessary, seek independent legal advice. This article does not provide legal conclusions.

Continue your research

• PGT in Thailand overview
• PGT and IVF guides
• Frequently asked questions

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.