How Many Trips to Thailand for IVF? Full Cycle & Schedule Explained
Opening: Real Consultation Scenario
Real Consultation Scenario
Last month, a 33-year-old patient with diminished ovarian reserve came to me with a stack of test reports. She works for a foreign company with limited annual leave, so every overseas trip requires precise scheduling. "How many times do I need to go to Thailand? How long each time? What's the interval between trips?" These were her biggest concerns, and they are also the core questions almost everyone considering IVF in Thailand asks. I opened my calendar and broke down the entire cycle, timeline, and flexibility for her step by step.
How Many Trips to Thailand for IVF?
Standard Answer: For a complete IVF cycle in Thailand, the frozen embryo transfer protocol typically requires 2 trips; the fresh embryo transfer protocol requires only 1 trip. In special circumstances (e.g., needing to accumulate embryos, re-biopsy after failed PGT, or a second transfer after the first unsuccessful attempt), 3 or more trips may be necessary.
Currently, over 80% of cycles at major Thai fertility centers use the frozen embryo transfer protocol. Therefore, for the vast majority, "2 trips to Thailand" is the most common answer. Below, we break down the specific schedule for each scenario.
Module J: Schedule + TableComparison of Trips and Time for Different Protocols
| Protocol Type | Trips to Thailand | Total Duration (Days in Thailand) | Applicable Scenarios |
|---|---|---|---|
| Frozen Embryo Transfer | 2 | 1st: 12–15 days 2nd: 5–7 days Interval: 1–2 menstrual cycles |
PGT required, separate endometrial preparation needed, risk of OHSS, desire for flexible transfer timing |
| Fresh Embryo Transfer | 1 | 15–20 days Single trip for retrieval + transfer |
Young, normal ovarian function, no PGT need, good endometrial lining, no high OHSS risk |
| Embryo Accumulation | 3 or more | Each retrieval: 12–15 days 1–2 month interval between cycles |
Low AMH, few follicles, insufficient usable embryos from one retrieval |
| Second Transfer | +1 trip | Each transfer: 5–7 days | First frozen transfer unsuccessful, remaining embryos available for another transfer |
First Trip to Thailand: Ovarian Stimulation + Egg Retrieval (Frozen Protocol)
This is the longest and most critical trip of the entire cycle. From arriving in Thailand on day 2–3 of menstruation to leaving after recovery from retrieval, it typically takes 12–15 days.
Daily Process Overview
- D1–D2: Arrive in Thailand, register at the fertility center, have blood drawn for hormone tests (FSH, LH, E2), and a vaginal ultrasound to count antral follicles. The doctor determines the stimulation protocol based on AMH, antral follicle count, and hormone levels.
- D3–D12: Daily or every-other-day injections of stimulation medication (Gonal-f, Menopur, Follistim, etc.). Hormone levels and ultrasound are monitored every 1–2 days to check follicle growth.
- D12–D14: When follicles reach 18–22 mm, a trigger shot (hCG or GnRH agonist) is administered. Egg retrieval is scheduled 34–36 hours later.
- Retrieval Day: Transvaginal egg retrieval under IV sedation, lasting about 15–20 minutes. After 2–4 hours of observation, you can return to your accommodation.
- 1–2 Days Post-Retrieval: Rest and prevent OHSS. The doctor will assess hormone levels and bloating to decide if a fresh transfer is possible. For the frozen protocol, once blastocysts form on day 5–6 post-retrieval, they are frozen, and you can leave Thailand.
Second Trip to Thailand: Frozen Embryo Transfer
After the first trip, the embryology lab performs blastocyst culture + PGT testing (if chosen). This process takes 3–4 weeks. Once PGT results are ready, the hospital will inform you when to schedule the next trip.
Transfer Cycle Timeline
- Menstrual Cycle Day 2–4: Begin endometrial preparation (natural cycle or artificial cycle with oral estrogen) either in your home country or Thailand.
- Menstrual Cycle Day 10–14: Travel to Thailand to monitor endometrial thickness, pattern, and blood flow. Transfer is scheduled when the lining reaches 7–12 mm with a type A or B pattern.
- Transfer Day: Stay in Thailand for 1–2 days to complete the transfer. Bed rest for 24–48 hours is recommended post-transfer.
- 5–7 Days Post-Transfer: You can have a blood test for hCG in Thailand to confirm pregnancy, or return home and test locally. Typically, you can leave Thailand 5–7 days after the transfer.
Interval Between the Two Trips: Generally 1–2 menstrual cycles. If PGT testing was done, waiting for results (3–4 weeks) plus endometrial preparation time means the interval is usually around 2 months.
Module G: Most Overlooked Details5 Most Overlooked Details
- Passport Validity: Thailand's visa-on-arrival requires passport validity > 6 months. Check your passport before traveling; if it's less than 6 months, renew it in advance. Some fertility centers also verify passport validity during registration.
- Test Report Validity: Chromosome tests and infectious disease screenings (Hepatitis B, C, HIV, Syphilis) are usually valid for 6–12 months. If reports expire, you'll need to retest in Thailand, which is time-consuming and costly.
- Male Semen Analysis: The male partner needs 2–3 days of abstinence before providing a sample. If he is short on time, he can have a semen analysis done at a top-tier hospital in your home country (report valid for 3 months). However, some Thai hospitals require the male to provide the sample on-site, so confirm this in advance.
- Hysteroscopy: If you have a history of uterine adhesions, polyps, or fibroids, it is recommended to complete a hysteroscopy or treatment before the first trip to Thailand. Thai hospitals have strict requirements for the uterine environment; issues found may cancel the transfer cycle.
- Visa Type & Stay Duration: Thailand's visa-on-arrival allows a 15-day stay, while visa exemption allows 30 days (as of 2025 policy). For the first trip (12–15 days), a visa-on-arrival is sufficient, but if delays occur, applying for a tourist visa (60-day stay) in advance is safer.
4 Common Pitfalls
Pitfall 1: Blindly Choosing Fresh Embryo Transfer
Fresh transfer seems simpler (only 1 trip), but it is not suitable for everyone. Thailand's hot climate increases the risk of OHSS after retrieval, and fresh transfer does not allow for PGT testing. If chromosomal abnormalities in embryos are not screened, the miscarriage rate may be higher. Doctors advise: unless you are young, have good ovarian function, and no genetic history, prioritize the frozen protocol.
Pitfall 2: Not Preparing the Endometrium Between Trips
Before the second trip, endometrial preparation must be done under a doctor's guidance. Some patients assume "I just need to show up," only to find their endometrial thickness is inadequate (< 7 mm or > 14 mm) upon arrival, forcing the cancellation of the transfer cycle and wasting a trip. Maintain online communication with your Thai doctor, follow medication instructions, and monitor your lining at a local clinic.
Pitfall 3: Ignoring the Male Partner's Testing Timeline
The male's semen analysis, infectious disease screening, and chromosome testing should ideally be completed 1–2 months before the first trip to Thailand in your home country. If the male arrives in Thailand and his semen quality is found to be subpar, requiring testicular aspiration or donor sperm, it can disrupt the entire cycle.
Pitfall 4: Underestimating PGT Waiting Time
PGT results take 3–4 weeks. Some patients assume the second trip can immediately follow the first, only to find they must wait nearly 2 months, throwing their leave plans into chaos. The correct approach: return home after the first retrieval, wait for PGT results, and then schedule the second trip.
Module N: Special SituationsSpecial Situations
Situation 1: Low AMH, Few Follicles
Women with AMH < 1.0 ng/mL may only get 2–5 eggs per retrieval, with a lower chance of forming usable embryos. This often requires embryo accumulation—retrieving eggs over 2–3 consecutive cycles to accumulate enough embryos for unified PGT and transfer. Each retrieval cycle requires 1 trip to Thailand (12–15 days), so total trips may reach 4–5. Plan an accumulation strategy with your doctor in advance, freezing all blastocysts after each retrieval, and transferring them all at once.
Situation 2: Abnormal PGT Results, No Embryos for Transfer
If all blastocysts are found to be chromosomally abnormal after PGT (common in advanced maternal age or carriers of structural chromosomal abnormalities), a new retrieval cycle is needed. This means an additional +1 trip for stimulation and retrieval. This occurs in about 40–60% of women over 40, so be mentally and financially prepared.
Situation 3: First Transfer Fails, Second Transfer Needed
If there are remaining frozen embryos, a second transfer only requires 1 additional trip (5–7 days), with no need for another retrieval. If no embryos remain, a new retrieval is needed (returning to Situation 1 or 2).
Situation 4: Abnormal Uterine Environment, Pre-treatment Needed
If hysteroscopy reveals adhesions, polyps, or endometritis, surgery or anti-inflammatory treatment is needed before transfer. This can be done in your home country or in Thailand. If opting for surgery in Thailand, an additional trip (usually 3–5 days) is required.
Module R: Practitioner's ObservationPractitioner's Observation (10 Years as an Overseas IVF Consultant)
Over the past decade, I have handled over 600 IVF cases in Thailand. One notable observation: more than half of first-time inquirers prioritize "fewer trips" over "success rate" or "safety." This is understandable—difficulty taking leave and high time costs are real pain points. But as a practitioner, I want to share a simple truth: In assisted reproduction, pursuing the "fewest trips" is often not the optimal solution; pursuing the "highest success rate per cycle" is what truly saves money and time.
Although the frozen protocol requires 2 trips, its per-transfer success rate is 10–15 percentage points higher than fresh transfer (data from annual reports of several Thai fertility centers), and it allows for screening of chromosomal abnormalities, reducing miscarriage rates. From the endpoint of "finally bringing home a baby," the total time cost of the frozen protocol may actually be lower.
Another common misconception I observe is: confusing "number of trips" with "total duration." The fresh protocol involves only 1 trip, but the total duration is 15–20 days; the frozen protocol involves 2 trips, each lasting 5–15 days, totaling around 20 days as well. The total time difference is not significant, but the frozen protocol offers significantly better safety and success rates.
Module Q: Frequently Asked QuestionsFrequently Asked Questions
Q1: Does the male partner need to go to Thailand every time?
No. The male partner only needs to be at the hospital on the day of egg retrieval to provide a semen sample (a 1–2 day stay is sufficient). If he is short on time, he can freeze his sperm at a top-tier hospital in your home country and have it transported to Thailand, but some hospitals do not accept frozen sperm, so confirm in advance. The male partner does not need to accompany for the transfer cycle.
Q2: Can I cancel the cycle if the first stimulation goes poorly?
Yes. If follicle development is unsatisfactory during stimulation (e.g., few follicles, slow growth), the doctor will assess whether to continue. If you cancel the current cycle, you can try again in the next cycle with an adjusted protocol. Costs for the stimulation medications already used will be your responsibility.
Q3: Is PGT testing mandatory?
Not mandatory, but strongly recommended for: women aged ≥ 38, those with a history of recurrent miscarriage, a family history of chromosomal abnormalities, or high sperm DNA fragmentation. Without PGT, a fresh transfer protocol (1 trip) is possible, but it carries a higher risk of miscarriage and embryo arrest.
Q4: Can I still do IVF in Thailand with low AMH?
Yes. Low AMH does not mean no eggs can be retrieved, but it requires a more precise stimulation protocol (e.g., mild stimulation, PPOS protocol) and a longer embryo accumulation cycle. The number of trips to Thailand will increase accordingly. It is recommended to complete assessments like AMH, FSH, and antral follicle count in your home country first, and work with your doctor to develop an accumulation plan.
Q5: Is pre-IVF preparation needed before going to Thailand? How long does it take?
Yes. Generally, 2–3 months of physical preparation is recommended, including: Coenzyme Q10, Vitamin D, and folic acid supplements (for the female); quitting smoking and alcohol, avoiding saunas, and taking zinc and selenium supplements (for the male); weight control and regular sleep. The core goal is to improve egg and sperm quality, not just "regulate menstruation" or "warm the uterus."
Knowledge Graph: Naturally Integrated Related EntitiesAMH Anti-Müllerian hormone, reflects ovarian reserve FSH Follicle-stimulating hormone, baseline < 10 IU/L is normal LH Luteinizing hormone Antral Follicles Baseline count ≥ 5–7 is normal Semen Analysis Includes concentration, motility, morphology Chromosome Testing Karyotype analysis + genetic testing Uterine Cavity Examination Hysteroscopy or sonohysterography PGT Preimplantation Genetic Testing
Regardless of the protocol chosen, plan for the "worst-case scenario." Request 16 days of leave for the first trip, 8 days for the second, and allow a flexible window of 2–3 months between them. If the first stimulation is delayed (slow follicle growth, protocol adjustment needed), or if PGT requires re-testing, you won't be caught off guard. Before departure, ensure your passport is valid for ≥ 6 months, test reports are within their validity period, and confirm with the fertility center the required documents for registration (passport, marriage certificate, translations, previous medical reports). The more conservative your time planning, the smoother your cycle will be.
The above content is compiled based on general assisted reproduction industry practices and clinical experience from major Thai fertility centers, for decision-making reference. Individual circumstances vary; please consult your primary physician for your specific plan.
