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  • PGT-A vs PGT-SR in Thailand: Key Differences for Patients with Chromosomal Rearrangements

    If you are considering IVF with preimplantation genetic testing (PGT) in Thailand, you may encounter two common types: PGT-A and PGT-SR. While both tests analyze embryos before transfer, they look for different genetic issues. PGT-A (aneuploidy screening) checks for an abnormal number of chromosomes, while PGT-SR (structural rearrangement testing) detects changes in chromosome structure, such as translocations or inversions. This article explains the key differences, who may benefit from each test, and what to consider when planning treatment in Thailand.

    At a Glance: PGT-A vs PGT-SR

    • PGT-A: Screens all 23 pairs of chromosomes for extra or missing chromosomes (aneuploidy). Used for advanced maternal age, recurrent miscarriage, or repeated implantation failure.
    • PGT-SR: Detects unbalanced structural rearrangements (e.g., translocations, inversions) in embryos. Recommended for patients who carry a balanced rearrangement themselves.
    • Both: Require embryo biopsy and genetic analysis. Results help select euploid (normal) embryos for transfer, potentially improving implantation and reducing miscarriage risk.

    What Is PGT-A?

    PGT-A (preimplantation genetic testing for aneuploidy) evaluates embryos for the correct number of chromosomes. Aneuploidy—having too many or too few chromosomes—is a leading cause of implantation failure, miscarriage, and conditions like Down syndrome. PGT-A is often recommended for women over 35, couples with recurrent pregnancy loss, or those with multiple failed IVF cycles. The test does not detect structural rearrangements or single-gene disorders.

    What Is PGT-SR?

    PGT-SR (preimplantation genetic testing for structural rearrangements) is designed for individuals who carry a balanced chromosomal rearrangement, such as a reciprocal or Robertsonian translocation, or an inversion. Carriers are usually healthy but may produce embryos with unbalanced rearrangements, leading to miscarriage or affected offspring. PGT-SR identifies embryos with balanced or normal chromosomes, allowing transfer of those with the best chance of healthy development.

    Key Differences Between PGT-A and PGT-SR

    Feature PGT-A PGT-SR
    What it detects Aneuploidy (extra/missing chromosomes) Unbalanced structural rearrangements
    Who it is for Advanced maternal age, recurrent miscarriage, repeated IVF failure Carriers of balanced translocations, inversions, or other structural changes
    Genetic cause Random errors in egg/sperm formation Inherited or de novo structural change in a parent
    Testing method NGS, aCGH, or SNP array on trophectoderm biopsy NGS with specific analysis for breakpoints, or aCGH/SNP array
    Result categories Euploid (normal), aneuploid, mosaic Balanced/normal, unbalanced, inconclusive

    Who Should Consider PGT-SR?

    PGT-SR is typically offered to couples where one partner has a known balanced chromosomal rearrangement. Common indications include:

    • History of recurrent miscarriage
    • Previous child with a structural chromosome abnormality
    • Known carrier of a translocation or inversion from karyotype testing
    • Male factor infertility due to structural rearrangement (e.g., Y chromosome microdeletion)

    If you have not had karyotype testing, your doctor may recommend it before considering PGT-SR.

    Testing Process in Thailand

    The process for both PGT-A and PGT-SR follows similar steps:

    1. IVF cycle: Ovarian stimulation, egg retrieval, fertilization (usually ICSI), and embryo culture to blastocyst stage (day 5-6).
    2. Embryo biopsy: A few cells are removed from the trophectoderm (future placenta) using a laser. The embryo is then vitrified (frozen).
    3. Genetic analysis: Biopsied cells are sent to a genetics laboratory. For PGT-SR, the lab must know the specific rearrangement to design the test.
    4. Results: Typically available within 1-2 weeks. A genetic counselor or doctor explains the results and which embryos are suitable for transfer.
    5. Frozen embryo transfer: A euploid or balanced embryo is thawed and transferred in a subsequent cycle.

    In Thailand, many IVF clinics offer PGT in collaboration with accredited genetic laboratories. Turnaround times and costs vary; confirm details directly with your chosen clinic.

    Questions to Ask Your Clinic

    • Do you offer both PGT-A and PGT-SR? Which laboratory do you work with?
    • How many embryos typically reach the blastocyst stage for biopsy?
    • What is the success rate for frozen embryo transfers after PGT?
    • How are mosaic embryos (with mixed normal and abnormal cells) handled?
    • Is genetic counseling included in the process?
    • What are the costs for PGT-A vs PGT-SR, and are there additional fees for transport or storage?

    Limitations and Considerations

    Neither PGT-A nor PGT-SR guarantees a pregnancy or a healthy baby. Both tests have limitations:

    • Embryo biopsy carries a small risk of damage, though modern techniques are safe.
    • PGT cannot detect all genetic conditions, such as single-gene disorders (for that, PGT-M is used).
    • Mosaicism can lead to inconclusive results.
    • PGT-SR requires prior knowledge of the parental rearrangement; if the breakpoints are not well characterized, the test may be less accurate.
    • Not all embryos will be suitable for biopsy or freezing; some may not survive the process.

    Discuss these limitations with your fertility specialist to make an informed decision.

    Next Steps

    • If you suspect a chromosomal rearrangement, ask your doctor for a karyotype test.
    • Research IVF clinics in Thailand that offer PGT-SR and have experience with structural rearrangements.
    • Prepare for a consultation with a list of questions about testing protocols, success rates, and costs.
    • Consider genetic counseling to understand the implications of test results.

    For more information, explore our PGT in Thailand guide, patient guides, and frequently asked questions.

    Frequently asked questions

    Can PGT-A detect structural rearrangements like translocations?

    No, PGT-A is designed to detect aneuploidy (abnormal chromosome number), not structural rearrangements. PGT-SR is specifically needed to identify unbalanced translocations or inversions.

    Do I need PGT-SR if I have a balanced translocation?

    PGT-SR is often recommended for carriers of balanced translocations to select embryos with balanced or normal chromosomes, reducing the risk of miscarriage or having a child with a chromosomal disorder. However, not all carriers require PGT; discuss your specific situation with a genetic counselor.

    Is PGT-SR available in Thailand?

    Yes, many IVF clinics in Thailand offer PGT-SR in collaboration with genetic laboratories. Availability and protocols vary, so confirm directly with the clinic.

    How long does it take to get PGT-SR results?

    Results typically take 1-2 weeks after embryo biopsy, depending on the laboratory and the complexity of the rearrangement.

    What is the difference between balanced and unbalanced translocation?

    A balanced translocation means the chromosome material is rearranged but no genetic material is lost or gained; carriers are usually healthy. An unbalanced translocation results in extra or missing genetic material, which can cause miscarriage or birth defects.

    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.

  • Understanding the Risks of PGT for Embryos in Thailand

    Preimplantation genetic testing (PGT) is a procedure used during IVF to screen embryos for genetic abnormalities before transfer. While PGT can provide valuable information, it is not without risks. Understanding these risks helps you make an informed decision. This article explains the main risks associated with PGT for embryos in Thailand, including embryo damage, mosaicism, and false results.

    At a Glance: Key Risks of PGT

    • Embryo damage: Biopsy may harm the embryo, though the risk is low.
    • Mosaicism: Results may not reflect all cells in the embryo.
    • False positives/negatives: Testing errors can lead to discarding healthy embryos or transferring affected ones.
    • Inconclusive results: Some embryos yield no clear diagnosis.
    • No guarantee of pregnancy or live birth: PGT does not ensure a successful outcome.

    What Is PGT and Why Is It Used?

    PGT involves taking a few cells from an embryo (biopsy) to test for specific genetic conditions. There are three main types:

    • PGT-A (aneuploidy): Screens for abnormal chromosome numbers, which can cause miscarriage or conditions like Down syndrome.
    • PGT-M (monogenic): Tests for single-gene disorders such as cystic fibrosis or sickle cell disease.
    • PGT-SR (structural rearrangement): Detects chromosomal rearrangements like translocations that may affect embryo development.

    PGT is typically recommended for couples with known genetic risks, advanced maternal age, recurrent miscarriage, or previous IVF failures. However, it is not a routine procedure for all IVF patients.

    Potential Risks of Embryo Biopsy

    Embryo Damage

    During biopsy, a laser or mechanical method is used to remove cells from the embryo. While embryologists are highly skilled, there is a small risk of damaging the embryo. Studies suggest that the risk of embryo loss due to biopsy is low (around 1-2%), but it is not zero. The embryo’s survival depends on its quality and the expertise of the laboratory.

    Impact on Embryo Development

    Some research indicates that biopsy may slightly reduce the embryo’s implantation potential, though evidence is mixed. The removal of cells could affect the embryo’s ability to hatch or implant in the uterus. However, many clinics report similar pregnancy rates after PGT compared to IVF without testing.

    Mosaicism: When Results Are Not Clear-Cut

    Mosaicism occurs when an embryo has both normal and abnormal cells. A biopsy samples only a few cells, which may not represent the entire embryo. For example, if the biopsied cells are normal but other cells are abnormal, the test may incorrectly report the embryo as normal (false negative). Conversely, if biopsied cells are abnormal but most cells are normal, the embryo may be discarded unnecessarily (false positive).

    Mosaic embryos can sometimes develop into healthy babies, but the risk of genetic disorders is higher. Clinics may offer additional testing or counseling for mosaic results.

    False Positives and False Negatives

    No genetic test is 100% accurate. PGT can produce:

    • False positive: The test indicates an abnormality when the embryo is actually normal. This can lead to discarding a healthy embryo.
    • False negative: The test indicates normal when the embryo has an abnormality. This could result in transferring an affected embryo.

    The accuracy of PGT depends on the laboratory’s techniques, the number of cells tested, and the specific condition being screened. For PGT-A, false positive rates are estimated at 2-5%, while false negatives are rarer but possible. Confirmatory testing (e.g., prenatal diagnosis) is recommended after pregnancy.

    Inconclusive Results and Embryo Wastage

    Sometimes, the biopsy sample does not yield enough DNA for analysis, or the results are ambiguous. In such cases, the embryo may be considered untestable, and you may need to decide whether to transfer it without genetic information or discard it. This can reduce the number of viable embryos available for transfer.

    Limitations of PGT: What It Cannot Do

    PGT is a screening tool, not a guarantee. It cannot:

    • Ensure pregnancy or live birth.
    • Prevent all genetic disorders (only those tested).
    • Predict the child’s future health, intelligence, or physical traits.
    • Replace prenatal testing during pregnancy.

    Additionally, PGT does not eliminate the risk of miscarriage or birth defects unrelated to the tested condition.

    Questions to Ask Your Clinic About PGT Risks

    Before proceeding with PGT in Thailand, consider asking your clinic:

    • What is your experience with embryo biopsy? How many procedures have you performed?
    • What is your rate of embryo damage or loss after biopsy?
    • How do you handle mosaic results? Do you offer additional testing?
    • What is the accuracy of your PGT for the specific condition we are testing?
    • What are the costs involved, and what happens if results are inconclusive?

    Next Steps: Making an Informed Decision

    • Consult with a genetic counselor to understand your specific risks.
    • Discuss the benefits and limitations of PGT with your fertility specialist.
    • Confirm the laboratory’s accreditation and quality standards.
    • Consider the emotional and financial costs of PGT versus the potential benefits.

    For more information, see our PGT in Thailand guide, patient guides, and frequently asked questions.

    Frequently asked questions

    Can PGT damage the embryo?

    Yes, there is a small risk of embryo damage during biopsy, but it is low (around 1-2% in experienced labs). The embryo may also have slightly reduced implantation potential, though many clinics report similar pregnancy rates.

    What is mosaicism in PGT?

    Mosaicism means an embryo has both normal and abnormal cells. Since biopsy samples only a few cells, the test may not reflect the whole embryo. Mosaic embryos can sometimes develop normally, but there is a higher risk of genetic disorders.

    How accurate is PGT?

    PGT is highly accurate but not 100%. False positives (abnormal result in a normal embryo) and false negatives (normal result in an abnormal embryo) can occur. Confirmatory prenatal testing is recommended after pregnancy.

    Does PGT guarantee a healthy baby?

    No. PGT only screens for specific genetic conditions and does not prevent all birth defects or guarantee pregnancy, live birth, or the child's future health.

    What happens if PGT results are inconclusive?

    If the biopsy sample does not provide enough DNA or results are ambiguous, the embryo may be considered untestable. You may choose to transfer it without genetic information or discard it, depending on clinic policy and your preferences.

    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.

  • Can I Do PGT in Thailand If I Live in Another Country? A Guide for International Patients

    Can International Patients Undergo PGT in Thailand?

    Yes, many fertility clinics in Thailand accept international patients for preimplantation genetic testing (PGT). The process typically involves remote consultations, a short stay in Thailand for the egg retrieval and biopsy, and then coordination with your home clinic for embryo transfer. However, the logistics—including travel, legal requirements, and embryo shipping—require careful planning. This guide outlines the key steps and questions to discuss with your chosen clinic.

    At a Glance: Key Considerations for International PGT in Thailand

    • Remote consultation: Most clinics offer initial video consultations to review your medical history and plan treatment.
    • Travel and stay: You will need to be in Thailand for approximately 2–3 weeks for ovarian stimulation, egg retrieval, and embryo biopsy.
    • Embryo shipping: After biopsy, embryos can be vitrified and shipped to your home clinic or a storage facility abroad.
    • Legal considerations: Confirm embryo ownership, shipping regulations, and consent requirements with both Thai and your home country authorities.
    • Follow-up care: Your home clinic will handle the embryo transfer and pregnancy monitoring.

    Step 1: Initial Remote Consultation

    Before traveling, you will have one or more video consultations with the Thai clinic. During these sessions, you can discuss your medical history, previous fertility treatments, and the specific PGT indication (e.g., chromosomal abnormalities, single-gene disorders). The clinic will advise on necessary medical tests and documentation. Ask about the clinic’s experience with international patients, language support, and coordination with overseas clinics.

    Step 2: Preparing for Travel

    Once you decide to proceed, the clinic will provide a treatment plan and timeline. You will need to arrange travel and accommodation. Consider the following:

    • Visa requirements: Check if you need a medical visa or if a tourist visa suffices. Confirm the allowed length of stay.
    • Medical records: Bring copies of all relevant medical records, including previous fertility treatments, genetic reports, and test results.
    • Medications: Some medications may need to be prescribed in Thailand. Ask the clinic about their pharmacy arrangements.
    • Support person: It is advisable to bring a partner or companion for support, especially on the day of egg retrieval.

    Step 3: Treatment in Thailand

    Your treatment cycle will follow a standard IVF protocol with PGT. The process includes:

    • Ovarian stimulation: Daily injections for about 10–14 days, with monitoring via blood tests and ultrasounds.
    • Egg retrieval: A minor surgical procedure under sedation, typically lasting 20–30 minutes.
    • Fertilization and embryo culture: Embryos are cultured to the blastocyst stage (day 5 or 6).
    • Embryo biopsy: A few cells are removed from each embryo for genetic testing.
    • Vitrification: Embryos are frozen and stored while awaiting test results.

    PGT results usually take 7–14 days. You may receive preliminary results before leaving Thailand, but final results may be sent later.

    Step 4: Embryo Shipping and Legal Considerations

    If you plan to transfer embryos in your home country, you will need to arrange shipping. This involves:

    • Choosing a shipping company: Specialized medical couriers handle cryopreserved embryos. Ensure the company is experienced in international transport.
    • Legal agreements: You will need to sign consent forms regarding embryo ownership, shipping, and future use. Both the Thai clinic and your home clinic must agree on the transfer.
    • Customs and import regulations: Each country has rules for importing human embryos. Your home clinic should guide you on required permits and documentation.
    • Storage: If shipping is delayed, embryos can remain in storage in Thailand. Confirm storage fees and duration.

    Important: Legal frameworks for embryo ownership and shipping vary by country. Consult with a legal expert familiar with reproductive law in both Thailand and your home country.

    Step 5: Follow-Up Care at Home

    Once embryos arrive at your home clinic, you can proceed with a frozen embryo transfer (FET) cycle. Your home clinic will manage the endometrial preparation and transfer. The Thai clinic may provide a summary of the PGT results and recommendations. Ensure that both clinics communicate effectively to avoid delays.

    Practical Questions to Ask Your Thai Clinic

    • What is your experience with international patients and embryo shipping?
    • Do you offer remote consultations and what is the process?
    • What medical tests do I need before traveling?
    • How long will I need to stay in Thailand?
    • What are the costs for treatment, storage, and shipping?
    • Can you provide a list of recommended accommodation and transport?
    • How do you handle language barriers? Is an interpreter available?
    • What is the timeline for PGT results?
    • What legal documents are required for embryo shipping?
    • How do you coordinate with my home clinic?

    Next Steps Checklist

    • [ ] Research Thai clinics that offer PGT and have international patient coordinators.
    • [ ] Schedule a remote consultation to discuss your case.
    • [ ] Confirm visa requirements and travel dates.
    • [ ] Arrange accommodation near the clinic.
    • [ ] Gather and translate medical records as needed.
    • [ ] Contact your home clinic to discuss embryo shipping and transfer plans.
    • [ ] Consult a legal expert on embryo shipping regulations.
    • [ ] Plan for a support person to accompany you.

    Privacy and Confidentiality

    Thai clinics are generally required to follow patient confidentiality laws. However, when shipping embryos abroad, your personal and medical information may be shared with couriers and receiving clinics. Ask the clinic about their data protection policies and how they handle consent for information sharing.

    Travel Flexibility and Accommodation

    Treatment timelines can be unpredictable. Build flexibility into your travel plans in case of delays (e.g., poor response to stimulation, scheduling conflicts). Consider booking refundable flights and accommodation. Many clinics can recommend nearby hotels or serviced apartments that cater to medical tourists.

    Communication and Support

    Effective communication is crucial. Ensure the clinic provides a dedicated coordinator who speaks your language. Ask about after-hours contact in case of emergencies. Some clinics offer mobile apps or online portals for sharing test results and messages.

    Frequently asked questions

    Do I need a medical visa for PGT in Thailand?

    Visa requirements depend on your nationality. Many patients enter on a tourist visa, but some countries require a medical visa. Check with the Thai embassy or consulate in your country. The clinic may provide a letter of invitation to support your visa application.

    How long do I need to stay in Thailand for PGT?

    Typically, you need to be in Thailand for about 2–3 weeks for ovarian stimulation, egg retrieval, and embryo biopsy. However, the exact duration depends on your treatment protocol and how your body responds. Discuss the expected timeline with your clinic.

    Can I ship my embryos to my home country?

    Yes, many clinics arrange shipping of vitrified embryos to your home clinic or a storage facility. You will need to work with a specialized medical courier and comply with import regulations in your home country. Confirm all legal and logistical details with both clinics and a legal advisor.

    What if I need to cancel or delay my treatment?

    Cancellation and refund policies vary by clinic. Ask about their policy before starting treatment. Some clinics may charge a fee for cycle cancellation after stimulation has begun. Travel insurance that covers medical treatment cancellation may be advisable.

    Will my home clinic accept PGT results from Thailand?

    Most clinics accept PGT results from accredited laboratories, but you should confirm with your home clinic beforehand. Ask for the Thai clinic’s laboratory accreditation and whether they provide detailed reports that meet your home clinic’s standards.

    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.

  • 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

    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.

  • PGT-A vs. PGT-M: Understanding Embryo Genetic Testing in Thailand

    Preimplantation genetic testing (PGT) allows embryos created through IVF to be analyzed for genetic or chromosomal conditions before transfer. Two common types are PGT-A (for aneuploidy) and PGT-M (for monogenic disorders). While both involve embryo biopsy and genetic analysis, they answer different questions and are used in different clinical scenarios. This guide explains the purpose, process, and indications for each test, including when both may be recommended.

    At a Glance: PGT-A vs. PGT-M

    • PGT-A screens embryos for an abnormal number of chromosomes (aneuploidy), such as trisomy 21 or monosomy X. It is often used to improve implantation rates and reduce miscarriage risk, especially in older mothers or those with recurrent pregnancy loss.
    • PGT-M tests for specific single-gene disorders (e.g., cystic fibrosis, Huntington’s disease, thalassemia) when one or both parents carry a known mutation. It aims to select embryos free of that particular condition.
    • PGT-SR (structural rearrangements) is a related test for embryos from parents with balanced translocations or inversions, often grouped with PGT-A in discussion.
    • Both tests require IVF with embryo biopsy, usually on day 5 or 6 (blastocyst stage), and involve a short period of embryo freezing while analysis is completed.

    What Is PGT-A?

    PGT-A (preimplantation genetic testing for aneuploidy) evaluates embryos for the correct number of chromosomes. Humans typically have 23 pairs (46 total). An extra or missing chromosome (aneuploidy) is a common cause of implantation failure, miscarriage, and conditions like Down syndrome. PGT-A identifies which embryos are euploid (normal chromosome count) and which are aneuploid. It does not detect single-gene disorders or small genetic changes.

    Who Might Consider PGT-A?

    • Women of advanced maternal age (typically over 35)
    • Couples with recurrent pregnancy loss
    • Repeated IVF implantation failure
    • Previous pregnancy with a chromosomal abnormality
    • Severe male factor infertility

    Limitations of PGT-A

    • It cannot detect all genetic conditions, only large chromosomal gains or losses.
    • Mosaicism (a mix of normal and abnormal cells in the embryo) can lead to uncertain results.
    • It does not guarantee a successful pregnancy or live birth.
    • Embryo biopsy carries a small risk of damage, though modern techniques minimize this.

    What Is PGT-M?

    PGT-M (preimplantation genetic testing for monogenic disorders) looks for a specific genetic mutation known to cause a hereditary disease. It requires prior knowledge of the mutation in the parents. The test is customized for each family, often using linkage analysis or direct mutation detection. PGT-M can dramatically reduce the risk of having a child affected by a serious genetic condition.

    Who Might Consider PGT-M?

    • Couples where one or both partners carry a mutation for an autosomal dominant disorder (e.g., Huntington’s disease, Marfan syndrome)
    • Carriers of autosomal recessive conditions (e.g., cystic fibrosis, sickle cell disease, spinal muscular atrophy)
    • X-linked disorders (e.g., Duchenne muscular dystrophy, hemophilia)
    • Couples with a family history of a known genetic condition

    Limitations of PGT-M

    • It only tests for the specific mutation(s) requested; other genetic or chromosomal issues are not assessed unless combined with PGT-A.
    • Test development can take weeks to months and requires genetic information from both parents and sometimes other family members.
    • Not all embryos may be free of the mutation; the chance of having a transferable embryo depends on inheritance patterns.
    • It does not eliminate the possibility of other genetic or health problems.

    When Are Both PGT-A and PGT-M Used?

    In some cases, a couple may benefit from both tests simultaneously. For example, a woman over 35 who carries a BRCA1 mutation might want PGT-M to select embryos without the mutation and PGT-A to identify chromosomally normal embryos. Combined testing can be performed on the same biopsy sample, though it adds to the complexity and cost. Discuss with your clinic whether dual testing is appropriate for your situation.

    Key Differences at a Glance

    Feature PGT-A PGT-M
    What it detects Chromosomal aneuploidy (extra/missing chromosomes) Specific single-gene mutations
    Indication Age, recurrent loss, implantation failure Known genetic disorder risk
    Customization Standardized test Family-specific test development required
    Results Euploid, aneuploid, mosaic Affected, unaffected, or inconclusive
    Time for results Typically 1–2 weeks May take longer due to test setup
    Cost Varies by clinic; confirm directly Generally higher due to customization

    Questions to Ask Your Clinic

    • What is the biopsy technique used (day 5 trophectoderm biopsy)?
    • How many cells are taken, and what is the risk of embryo damage?
    • How long does it take to receive results?
    • Can PGT-A and PGT-M be performed together on the same biopsy?
    • What is the cost for each test, and are there additional fees for transport or storage?
    • What happens to embryos with inconclusive or mosaic results?
    • Is genetic counseling available before and after testing?

    Next Steps

    1. Consult with a fertility specialist and genetic counselor to determine if PGT is appropriate for your situation.
    2. If considering PGT-M, arrange for carrier screening or confirm known mutations with your doctor.
    3. Choose a clinic experienced in PGT and discuss their laboratory protocols and success rates (note: success rates vary and should be interpreted cautiously).
    4. Review the legal and ethical framework for PGT in Thailand, as regulations may affect which conditions can be tested.
    5. Plan for the additional time and cost involved in PGT cycles.

    For more information, explore our PGT in Thailand guide, other patient guides, and frequently asked questions.

    Frequently asked questions

    Can PGT-A and PGT-M be done at the same time?

    Yes, both tests can be performed on the same embryo biopsy sample. This is often called combined PGT. However, it requires a laboratory capable of both analyses and may increase the overall cost and time for results. Discuss with your clinic whether combined testing is suitable for your case.

    Does PGT-A guarantee a healthy baby?

    No. PGT-A only screens for chromosomal aneuploidy; it does not detect all genetic disorders, birth defects, or health conditions. A euploid embryo still has a risk of other problems. PGT-A can improve the chances of a successful pregnancy but does not guarantee a healthy child.

    Is PGT-M available for all genetic conditions?

    PGT-M can be developed for most single-gene disorders where the specific mutation is known. However, test development may not be feasible for very rare conditions or when family genetic samples are unavailable. Your clinic and genetic counselor can advise on feasibility.

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

    PGT-SR (structural rearrangements) is used when a parent carries a balanced translocation or inversion. It detects embryos with unbalanced chromosomal rearrangements, which can cause miscarriage or birth defects. PGT-A screens for aneuploidy, while PGT-SR focuses on structural changes. Some laboratories combine both.

    How long does it take to get PGT results?

    Results typically take 1–2 weeks for PGT-A and may take longer for PGT-M due to the need for test customization. The exact timeline depends on the laboratory and whether combined testing is performed. Embryos are frozen while awaiting results.

    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.

  • How to Choose Between a Clinic and a Hospital for Frozen Embryo Transfer in Thailand

    When planning a frozen embryo transfer (FET) in Thailand, one of the first decisions is whether to choose a dedicated fertility clinic or a hospital-based fertility center. Both settings can offer high-quality care, but they differ in structure, services, and patient experience. This article compares the two options across key factors to help you evaluate which setting may better suit your needs.

    At a Glance: Clinic vs Hospital for FET

    • Dedicated fertility clinic: Focused solely on reproductive medicine, often with specialized embryology labs and streamlined processes. Examples include Deep & Harmonicare IVF Center (DHC) and Jetanin Hospital.
    • Hospital-based fertility center: Part of a larger multidisciplinary hospital, offering access to other medical specialties and emergency care. Examples include Bangkok Hospital Fertility Center and Bumrungrad International Hospital.

    Lab Quality and Embryology Services

    The embryology laboratory is the heart of any FET program. In dedicated fertility clinics, the lab is typically purpose-built for assisted reproduction, with specialized equipment and embryologists focused solely on IVF. For example, DHC lists Embryoscope+ and Geri time-lapse incubators, IVF Witness witnessing system, IMSI, and MACS. Jetanin Hospital describes in-house embryo, genetics, and sperm laboratories with EmbryoScope and ISO 15189/15190 standards.

    Hospital-based centers often have in-house embryology labs as well. Bangkok Hospital Fertility Center states it has an in-house embryology laboratory. MedPark IVF Fertility and Genetics Center describes ESHRE-certified embryologists and AI-assisted embryo assessment. However, the lab may serve multiple departments, and turnaround times for genetic testing could differ.

    Questions to ask: Is the embryology lab on-site and dedicated to fertility? What incubators and witnessing systems are used? Are embryologists available for direct consultation?

    Doctor Availability and Continuity

    In a dedicated fertility clinic, you are likely to see the same reproductive endocrinologist throughout your cycle. Clinics like DHC and Jetanin have teams of reproductive physicians, embryologists, and geneticists working together. In a hospital setting, you may have access to a broader range of specialists (e.g., urologists, endocrinologists) but might see different doctors for different stages.

    Questions to ask: Will the same doctor perform my FET? Who covers after-hours emergencies? How is the on-call system structured?

    Cost Considerations

    Costs for FET can vary significantly between settings. Published reference prices (subject to change and individual variation) include:

    Provider Package/Reference Price (THB) Notes
    Deep & Harmonicare IVF Center (DHC) 490,000 (basic single-cycle medical package) Excludes medication, testing, storage, travel
    Bangkok Hospital Fertility Center 335,000 (stimulation through transfer); 456,000 (with PGT and freezing for 2 embryos) Valid to 31 Dec 2026; terms apply
    MedPark IVF Fertility and Genetics Center 280,000 (IVF/ICSI package) Validity, inclusions, exclusions require confirmation

    Dedicated clinics may offer all-inclusive packages, while hospital-based centers might itemize services. Always request a written quotation detailing what is included and what is extra.

    Patient Experience and Convenience

    Dedicated fertility clinics often provide a more intimate, streamlined experience with fewer patients and shorter wait times. Hospital-based centers may feel busier but offer amenities like parking, cafeterias, and pharmacy on-site. For international patients, some hospitals have dedicated international coordination teams.

    Questions to ask: Is there a dedicated international patient coordinator? What is the typical wait time for appointments? Are translation services available?

    How to Decide: A Step-by-Step Approach

    1. List your priorities: Lab quality, doctor continuity, cost, convenience, or access to other specialties.
    2. Research shortlisted providers: Use the hospital library at Thailand PGT to compare profiles.
    3. Request written quotations from at least two providers, ensuring they include all expected costs.
    4. Ask specific questions about lab protocols, doctor availability, and emergency coverage.
    5. Consider a virtual consultation to assess communication and comfort level.

    Next Steps Checklist

    • ☐ Identify 2-3 providers (clinic and/or hospital) that match your criteria.
    • ☐ Request a detailed written quotation for FET, including medication, monitoring, and transfer.
    • ☐ Confirm the embryology lab is on-site and inquire about equipment and quality controls.
    • ☐ Ask about the treating doctor’s experience with FET and PGT if applicable.
    • ☐ Clarify the process for international patients, including payment, translation, and travel support.

    For a full list of fertility providers in Thailand, visit our hospitals page and hospital rankings. See our partner disclosure for information about commercial relationships.

    Frequently asked questions

    What is the main difference between a fertility clinic and a hospital-based center for FET?

    A dedicated fertility clinic focuses exclusively on reproductive medicine, often with specialized embryology labs and streamlined processes. A hospital-based center is part of a larger multidisciplinary hospital, offering access to other medical specialties and emergency care. Both can provide high-quality FET, but the experience and available services may differ.

    Is it cheaper to have FET at a clinic or a hospital in Thailand?

    Costs vary by provider and package. Some dedicated clinics offer all-inclusive packages, while hospital-based centers may itemize services. For example, DHC lists a basic single-cycle medical package at THB 490,000, while Bangkok Hospital Fertility Center offers a fly-in package from THB 335,000. Always request a detailed written quotation to compare.

    Do hospital-based fertility centers have the same lab quality as dedicated clinics?

    Many hospital-based centers have in-house embryology labs with advanced equipment and certified embryologists. For instance, MedPark IVF describes ESHRE-certified embryologists and AI-assisted assessment. However, dedicated clinics often have labs purpose-built for IVF, which may offer more specialized focus. Confirm lab details directly with each provider.

    Will I see the same doctor throughout my FET cycle at a hospital?

    It depends on the hospital's structure. Some hospital-based centers assign a primary reproductive endocrinologist, while others may have a team approach. Dedicated clinics typically offer more continuity. Ask about the doctor assignment policy during your consultation.

    What should I ask when choosing between a clinic and a hospital for FET?

    Key questions include: Is the embryology lab on-site and dedicated? Who performs the transfer and will it be the same doctor each time? What is included in the quoted price? Is there a dedicated international patient coordinator? What emergency coverage is available?

    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.

  • Is Frozen Embryo Transfer Cheaper Than Fresh Transfer in Thailand?

    Understanding the Cost Difference

    When comparing frozen embryo transfer (FET) and fresh embryo transfer in Thailand, the cost depends on whether the FET is part of the same IVF cycle or a separate cycle. In a fresh transfer, the embryo is transferred shortly after egg retrieval and fertilization, while FET involves freezing embryos and transferring them in a later cycle.

    Generally, a fresh embryo transfer is included in the initial IVF cycle cost. If you choose to freeze all embryos and do a FET later, you may pay for the fresh cycle plus additional fees for freezing, storage, and the FET procedure. However, if you have already completed a fresh cycle and have frozen embryos, a subsequent FET cycle is typically less expensive than a new fresh IVF cycle.

    Cost Components of Fresh vs. Frozen Transfer

    Fresh Embryo Transfer

    • IVF cycle fee: Includes ovarian stimulation, egg retrieval, fertilization, and embryo culture.
    • Embryo transfer fee: Usually included in the IVF cycle fee.
    • Medication costs: For ovarian stimulation and luteal phase support.
    • Monitoring and lab fees: Ultrasound scans, blood tests, and embryology services.

    Frozen Embryo Transfer (FET)

    • Embryo freezing (vitrification) fee: One-time cost for freezing embryos.
    • Embryo storage fee: Annual or monthly fee for keeping embryos frozen.
    • FET cycle fee: Covers endometrial preparation, monitoring, and the transfer procedure.
    • Medication costs: For endometrial preparation (e.g., estrogen, progesterone).

    When FET May Be Cheaper

    If you already have frozen embryos from a previous cycle, a FET cycle is usually less expensive than starting a new fresh IVF cycle because it avoids the costs of ovarian stimulation, egg retrieval, and fertilization. However, if you are doing a fresh cycle and then a FET in the same treatment plan, the total cost will be higher than a single fresh transfer.

    When Fresh Transfer May Be Cheaper

    If you are doing only one transfer and it is successful, a fresh transfer may be more cost-effective because it avoids the additional fees for freezing, storage, and a separate FET cycle. Some clinics also offer package deals that include a fresh transfer and one FET, which can reduce overall costs.

    Questions to Ask Your Clinic

    • What is included in the fresh IVF cycle fee? Does it cover the embryo transfer?
    • What are the costs for embryo freezing and annual storage?
    • What is the fee for a frozen embryo transfer cycle? What does it include?
    • Are there package deals for fresh + FET cycles?
    • Do medication costs differ between fresh and FET cycles?
    • Are there any additional lab or monitoring fees for FET?

    Other Factors Affecting Total Cost

    • Number of embryos frozen: Some clinics charge per embryo for freezing and storage.
    • Duration of storage: Longer storage increases total cost.
    • Medication protocol: Natural cycle FET may require less medication than medicated FET.
    • Clinic location and reputation: Costs vary between clinics and cities.
    • Additional procedures: Assisted hatching, genetic testing, or embryo glue may add costs.

    Making an Informed Decision

    To determine which option is more cost-effective for your situation, request a detailed cost breakdown from your clinic. Consider your medical history, the number of embryos available, and your personal preferences. Remember that the cheapest option may not always be the best for your chances of success. Discuss with your doctor the medical indications for fresh vs. frozen transfer.

    Frequently asked questions

    Is a frozen embryo transfer always cheaper than a fresh transfer?

    Not necessarily. If you are doing a fresh IVF cycle and then a FET, the total cost is higher. However, if you already have frozen embryos, a FET cycle is usually less expensive than a new fresh IVF cycle.

    What are the main cost components of a frozen embryo transfer?

    The main costs include embryo freezing (vitrification), annual storage fees, the FET cycle fee (endometrial preparation and transfer), and medications for endometrial preparation.

    Does the cost of medication differ between fresh and frozen cycles?

    Yes. Fresh cycles require medications for ovarian stimulation, which are typically more expensive. FET cycles use medications for endometrial preparation, which may be less costly, especially in a natural cycle.

    Are there package deals that combine fresh and frozen transfers?

    Some clinics offer packages that include one fresh IVF cycle and one or more FET cycles at a reduced total cost. Ask your clinic about such options.

    Can I save money by freezing all embryos and doing FET later?

    It depends. If you have medical reasons to avoid fresh transfer (e.g., risk of ovarian hyperstimulation syndrome), FET may be necessary. Otherwise, consider the additional costs of freezing and storage versus the potential savings from avoiding a new fresh cycle.

    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.

  • How Much Does a Frozen Embryo Transfer Cost in Thailand?

    Understanding Frozen Embryo Transfer Costs in Thailand

    Frozen embryo transfer (FET) is a common step in IVF treatment where a previously frozen embryo is thawed and transferred into the uterus. The cost of FET in Thailand varies depending on several factors, including the clinic, the medications required, and any additional monitoring or procedures. While exact prices are not fixed and can change, understanding the typical cost components helps you budget and compare quotes effectively.

    At a Glance: Key Cost Components

    • Clinic fees: Covers the transfer procedure, laboratory work for thawing, and embryology services.
    • Medication costs: Hormonal medications to prepare the uterine lining (e.g., estrogen, progesterone).
    • Monitoring fees: Ultrasound scans and blood tests to track lining development and hormone levels.
    • Embryo storage fees: Annual or monthly charges for keeping embryos frozen.
    • Additional procedures: Endometrial scratch, assisted hatching, or genetic testing if applicable.

    Breakdown of FET Cost Components

    Clinic and Transfer Procedure Fees

    The core cost includes the thawing of the embryo, the transfer procedure itself, and the embryology work. Some clinics bundle this into a single package, while others itemize. Ask whether the quoted fee covers the transfer attempt or if multiple attempts are included.

    Medication Costs

    FET requires hormonal preparation of the uterine lining. Medications typically include estrogen (oral, patch, or injection) and progesterone (injection, vaginal gel, or suppository). The type, dosage, and duration of medication affect the total cost. Some clinics include basic medications in their package; others charge separately.

    Monitoring and Lab Tests

    Before the transfer, you will need several ultrasound scans to measure endometrial thickness and blood tests to check hormone levels. The number of monitoring visits varies by protocol. Confirm whether monitoring fees are included in the package or billed per visit.

    Embryo Storage Fees

    If you already have frozen embryos from a previous cycle, storage fees apply. These are usually charged annually or monthly. If you are creating embryos specifically for FET, storage may be included for a limited period.

    Additional Procedures

    Some patients may require or opt for additional services that increase the cost:

    • Assisted hatching: A laser technique to help the embryo hatch before implantation.
    • Endometrial receptivity array (ERA): A biopsy to determine the optimal timing for transfer.
    • Genetic testing: Preimplantation genetic testing (PGT) of embryos, if not already done.
    • Hysteroscopy or saline sonogram: To evaluate the uterine cavity before transfer.

    Questions to Ask When Comparing FET Quotes

    To get an accurate comparison, ask each clinic the following:

    • What is included in the base FET package? (e.g., thawing, transfer, embryology)
    • Are medications included? If not, what is the estimated cost?
    • How many monitoring visits are typical, and are they included?
    • Are there any additional fees for assisted hatching, ERA, or genetic testing?
    • What are the embryo storage fees, and how are they billed?
    • Is there a discount for multiple FET cycles or a refund program?
    • What is the payment schedule and cancellation policy?

    Factors That Influence Total Cost

    The total cost of FET can vary based on:

    • Clinic location and reputation: Clinics in Bangkok may have higher overheads than those in other cities.
    • Your medical history: Complex cases may require more monitoring or additional procedures.
    • Medication protocol: Natural cycle FET (minimal medication) may cost less than medicated cycle FET.
    • Number of embryos transferred: Some clinics charge per embryo transferred, while others have a flat fee.
    • Embryo storage duration: Longer storage increases cumulative costs.

    Next Steps for Budgeting

    1. Request a detailed written quote from at least two or three clinics.
    2. Ask for a breakdown of all potential costs, including hidden fees.
    3. Inquire about package deals that combine FET with medication and monitoring.
    4. Check if your home country insurance or any travel insurance covers part of the treatment.
    5. Plan for additional costs such as travel, accommodation, and time off work.

    For more information on overall IVF costs in Thailand, see our IVF cost guide. For patient resources and support, visit our patient resources page. If you have specific questions, contact us for personalized assistance.

    Frequently asked questions

    Does the FET cost include medication?

    Some clinics include basic medications in their FET package, while others charge separately. Always ask for a detailed breakdown of medication costs, including the type, dosage, and duration.

    Are there additional costs for multiple FET attempts?

    Yes, each FET cycle typically incurs separate fees for the transfer procedure, medication, and monitoring. Some clinics offer multi-cycle packages or discounts for multiple attempts.

    What is the cost of embryo storage in Thailand?

    Embryo storage fees vary by clinic and are usually charged annually or monthly. Confirm the storage fee structure and whether it is included for a period after the transfer.

    Does insurance cover FET in Thailand?

    Most international health insurance plans do not cover fertility treatments, including FET. Check with your provider for any exceptions or travel insurance that may offer limited coverage.

    Can I get a refund if the FET cycle is cancelled?

    Cancellation policies vary by clinic. Ask about the refund policy for unused medications, monitoring visits, or the transfer procedure before committing.

    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.

  • What Happens If Your Frozen Embryo Transfer Is Cancelled in Thailand?

    Understanding FET Cancellation

    A frozen embryo transfer (FET) cycle may be cancelled before the scheduled transfer for various medical reasons. While this can be disappointing, it is a standard part of IVF care to ensure the best chance of success and safety. In Thailand, clinics follow international protocols, and cancellation decisions are made by your fertility specialist based on your individual response.

    Common Reasons for Cancellation

    Thin Endometrial Lining

    The uterine lining must reach an adequate thickness (typically measured by ultrasound) to support implantation. If the lining does not thicken sufficiently despite medication, the cycle may be cancelled to avoid a low chance of pregnancy.

    Hormonal Imbalances

    FET cycles rely on precise hormone levels (estrogen and progesterone). If levels are not optimal on the planned transfer day, your doctor may cancel and adjust the protocol for a future cycle.

    Ovarian Cysts or Other Findings

    Unexpected ovarian cysts, fluid in the uterus, or other ultrasound findings can interfere with implantation. Cancellation allows time for these issues to resolve.

    Poor Embryo Quality After Thaw

    Although rare, some embryos may not survive the thawing process or may show reduced quality. If no suitable embryo remains, the cycle is cancelled.

    What to Expect After Cancellation

    Your clinic will explain the specific reason and discuss next steps. Typically, you will stop medications as directed and wait for your next menstrual period to begin a new cycle. The timeline for a repeat FET depends on your individual situation and clinic protocol.

    Refund Policies and Financial Considerations

    Refund policies vary by clinic and package. Some clinics offer partial or full refunds for cancelled cycles, while others may credit the amount toward a future cycle. It is essential to review your treatment agreement carefully before starting. Ask your clinic:

    • What is the refund policy if my FET is cancelled?
    • Are medication costs refundable?
    • Will there be additional charges for monitoring in a cancelled cycle?
    • Can I transfer my payment to a future cycle?

    Travel and Accommodation Planning

    If you are traveling to Thailand for FET, cancellation can affect your stay. Consider booking flexible flights and accommodation. Discuss with your clinic how long you may need to remain in Thailand if a cancellation occurs, and whether monitoring can be done remotely for a future cycle.

    Next Steps Checklist

    • Confirm the reason for cancellation with your doctor.
    • Review your clinic’s refund or credit policy.
    • Ask about the recommended waiting period before a new FET.
    • Discuss any adjustments to your medication protocol.
    • Update your travel plans if needed.
    • Seek emotional support if you feel disappointed.

    Questions to Ask Your Clinic

    • What specific criteria determine whether my FET is cancelled?
    • How will I be notified of a cancellation decision?
    • What are my options if my lining is thin?
    • Can I use the same embryo in a future cycle?
    • What is the success rate for FET after a cancelled cycle?

    Remember, a cancelled FET is not a failure—it is a precaution to optimize your chances. Always verify details directly with your treating clinic, as policies and medical practices can vary.

    Frequently asked questions

    Can I get a refund if my FET is cancelled in Thailand?

    Refund policies depend on your clinic and treatment package. Some clinics offer partial or full refunds for cancelled cycles, while others may credit the amount toward a future cycle. Always review your agreement before starting treatment.

    How long do I have to wait after a cancelled FET to try again?

    The waiting period varies. Most clinics recommend waiting for one natural menstrual cycle before starting a new FET protocol. Your doctor will advise based on your individual situation.

    What happens to my frozen embryos if the transfer is cancelled?

    Your embryos remain frozen at the clinic. They can be used in a future FET cycle once the reason for cancellation is resolved. You may need to pay ongoing storage fees.

    Is a cancelled FET common?

    Cancellation rates vary, but it is not uncommon. Thin lining or hormonal issues are frequent reasons. Your clinic can provide data on their own cancellation rates if you ask.

    Can I travel home immediately after a cancelled FET?

    Yes, once your doctor confirms it is safe. You may need to stop medications and have a follow-up ultrasound. Discuss travel timing with your clinic.

    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.

  • Frozen Embryo Transfer Success for Women Over 40 in Thailand: What to Know

    Understanding Frozen Embryo Transfer and Age

    Frozen embryo transfer (FET) involves thawing and transferring a previously frozen embryo into the uterus. For women over 40, success rates are influenced by the embryo’s chromosomal health, which declines with age. Preimplantation genetic testing (PGT) can help select embryos with a normal number of chromosomes, potentially improving the chance of implantation and live birth. However, no test can guarantee pregnancy, and outcomes vary by individual.

    Factors Affecting FET Success in Older Women

    Embryo Quality and Genetic Status

    Embryo quality is the strongest predictor of FET success. After age 40, a higher proportion of embryos are chromosomally abnormal, which often leads to implantation failure or miscarriage. PGT-A (aneuploidy screening) can identify euploid (normal) embryos for transfer. While PGT-A does not increase the number of viable embryos, it may reduce the time to pregnancy by avoiding transfers of abnormal embryos.

    Uterine Receptivity

    The uterine lining must be receptive for implantation. Factors such as endometrial thickness, hormone levels, and the presence of fibroids or polyps can affect success. Clinics typically assess the uterus via ultrasound or hysteroscopy before FET.

    Number of Previous IVF Cycles

    Women who have had multiple failed IVF cycles may have lower success rates with FET, though this is not always the case. Each cycle provides information that can guide adjustments.

    Clinic Experience and Laboratory Standards

    The quality of the IVF laboratory and the embryologist’s skill in freezing and thawing embryos are critical. Vitrification (ultra-rapid freezing) has improved survival rates for frozen embryos, but outcomes vary between clinics.

    Role of Preimplantation Genetic Testing (PGT)

    PGT is often recommended for women over 40 to screen embryos for chromosomal abnormalities. Types include:

    • PGT-A: Screens for aneuploidy (extra or missing chromosomes).
    • PGT-M: Tests for single-gene disorders (if indicated).
    • PGT-SR: Detects structural rearrangements like translocations.

    PGT can reduce miscarriage risk and increase the chance of a healthy live birth per transfer, but it does not guarantee success. Not all embryos will be suitable for biopsy, and some may not survive the process. Discuss with your clinic whether PGT is appropriate for your situation.

    Questions to Ask Your Clinic

    • What is your clinic’s FET success rate for women over 40 using PGT-screened embryos?
    • How many embryos typically survive the freeze-thaw process?
    • What is your approach to preparing the uterine lining for FET?
    • Do you recommend PGT-A for all patients over 40, or only after multiple failures?
    • What additional tests (e.g., endometrial receptivity array) do you offer?

    Next Steps for Patients Over 40

    1. Consult a fertility specialist to review your ovarian reserve and overall health.
    2. Discuss the option of PGT-A to guide embryo selection.
    3. Ask about the clinic’s experience with FET in older patients.
    4. Consider a second opinion if you have had previous failed cycles.
    5. Plan for multiple cycles if needed, as embryo banking may improve cumulative success.

    For more information, see our guides on PGT in Thailand and IVF guides, or visit our FAQ page.

    Frequently asked questions

    Does PGT-A improve FET success for women over 40?

    PGT-A can help select chromosomally normal embryos, which may increase the chance of implantation and reduce miscarriage risk. However, it does not guarantee success, and some women may not have any euploid embryos to transfer.

    How many FET cycles might I need over 40?

    The number of cycles varies. Some women achieve pregnancy after one FET, while others may need multiple attempts. Embryo banking (freezing embryos from several egg retrievals) can improve cumulative success.

    What is the typical cost of FET in Thailand?

    Costs vary widely by clinic and whether PGT is included. Confirm all fees, including medication, lab work, and embryo storage, directly with the clinic.

    Can I use donor eggs with FET if my own embryos are not viable?

    Yes, donor egg embryos often have higher success rates for women over 40. Discuss this option with your clinic if you have few or no euploid embryos.

    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.