Transfer on your terms. Frozen embryos let you separate timing from biology and choose when your body is ready.
Frozen embryo transfer lets you separate egg retrieval from embryo transfer — giving your body time to recover, your PGT-A results time to come back, and your schedule time to accommodate a return visit. With modern vitrification achieving embryo survival rates above 95%, FET outcomes match or slightly exceed fresh transfers at most leading clinics.
Free, no-obligation — you pay the hospital directly with no markup.
A frozen embryo transfer thaws a previously vitrified embryo and places it into the uterus at the optimal point in your cycle. FET is used after a freeze-all IVF cycle, when surplus embryos remain from a previous round, or when PGT-A results dictated a delayed transfer. You skip the stimulation and retrieval entirely — the cycle is shorter, simpler, and cheaper.
Vitrification — ultra-rapid freezing — achieves embryo survival rates exceeding 95%. FET pregnancy rates match or slightly exceed those from fresh transfers because the uterine lining develops without the hormonal disruption of a stimulation cycle. The lining is prepared with medication or tracked through your natural cycle, and the transfer happens when thickness and pattern are confirmed optimal.
If your embryos are already stored in Thailand, returning for the transfer is the logical next step. Even if you are considering shipping embryos home, the cost comparison usually makes travelling back more practical.
95%+
Proven Embryo Survival
Modern vitrification at Thai clinics achieves post-thaw survival rates above 95%, matching the best laboratories globally.
50–60%
Fraction of the Cost
An FET cycle in Thailand costs significantly less than repeating a full stimulation cycle at home — and less than shipping embryos internationally.
7–10 Days
Short Treatment Stay
An FET cycle is much shorter than a full IVF round. Most patients complete the process in under two weeks including travel days.
Continuity
Same Team and Records
Returning to the same clinic means your specialist already knows your history, your embryos, and your response to previous treatment.
We do not charge for our service — you pay the clinic directly with no markup. FET is considerably cheaper than a full IVF cycle because stimulation and retrieval are not repeated.
Your Quote Will Include
Prices are approximate and vary by technique, surgeon, and hospital. Your personalised quote will include a full cost breakdown.
A frozen embryo transfer cycle in Thailand costs between $1,500 and $2,700. This covers endometrial preparation, monitoring, embryo thawing, and the transfer procedure. Medication costs are additional and vary depending on the protocol used. If PGT-A results are pending from a previous cycle, there may be a separate genetic counselling fee.
The FET fee covers specialist consultations, serial ultrasound scans and blood tests for lining monitoring, embryo thawing by the embryology team, the transfer procedure, and a follow-up blood test. Endometrial preparation medication — oestrogen and progesterone — is typically quoted separately as dosages vary between patients. Annual embryo storage fees are billed independently.
The main variables are whether you use a medicated or natural cycle protocol, how many monitoring visits are needed before the lining is confirmed ready, and whether any additional investigations like ERA testing are recommended. If this is your first FET after a freeze-all cycle, the cost is straightforward. If complications from a previous transfer need to be addressed first — such as a hysteroscopy to check for polyps — that is a separate procedure.
Pricing varies by the complexity and scope of the procedure. Typical ranges at our partner hospitals in Thailand:
Exact pricing is confirmed after your consultation and treatment plan are finalised.
FET in Thailand costs 50–60% less than equivalent cycles in the US ($3,800–$6,800), Australia (A$3,300–A$6,000), and UK (£3,000–£5,300). The saving is particularly significant when you consider that FET is often the follow-up to a previous full IVF cycle — the cumulative cost of treatment in Thailand remains well below a single cycle at home.
The primary decision in an FET cycle is how to prepare your endometrium — with medication or by tracking your natural cycle. Both approaches produce comparable pregnancy rates when managed by an experienced team.
Hormone medication — oestrogen tablets or patches followed by progesterone — builds and maintains the uterine lining on a controlled schedule. Your natural ovulation is suppressed, giving your specialist complete control over transfer timing. This is the most widely used protocol for international patients because the schedule is highly predictable.
Your body's own hormones prepare the lining without medication. Ultrasound and blood tests track ovulation, and the embryo is transferred relative to your natural progesterone rise. This avoids exogenous hormones but requires more flexible scheduling and frequent monitoring visits.
Endometrial preparation is the clinical core of an FET cycle. The goal is a lining of adequate thickness (typically 7mm or more) with the right hormonal environment for implantation.
Serial transvaginal ultrasound scans measure the endometrial lining thickness and assess its pattern — ideally trilaminar, which indicates optimal receptivity. Blood tests confirm hormone levels are supportive. If the lining is not developing adequately, medication adjustments are made before proceeding. Transfer only happens when the uterine environment is confirmed ready.
The transfer date is calculated based on when progesterone exposure begins — either from exogenous progesterone in a medicated cycle or from the natural LH surge in a natural cycle. Timing the transfer to the correct day of progesterone exposure ensures the embryo and endometrium are synchronised. Getting this wrong by even a day can reduce implantation rates.
For a medicated FET, oestrogen medication begins around day one to two of your period — this can often be started at home before you travel. For a natural cycle FET, monitoring begins around day eight to ten. Your clinic tracks lining thickness and hormone levels with ultrasound and blood tests.
A scan confirms endometrial lining has reached target thickness with the right pattern. In a medicated cycle, progesterone support starts. In a natural cycle, the body's own progesterone rise is detected. The embryo thaw is then scheduled based on precise timing calculations.
The embryo is thawed by the embryology team — a process that takes a few hours. Survival is confirmed before transfer. The transfer itself is a simple, painless procedure lasting about ten minutes. A thin catheter is guided through the cervix and the embryo is placed into the uterus under ultrasound guidance. No sedation is needed.
You continue progesterone support as prescribed. A pregnancy blood test is taken 10–12 days after transfer. Many patients return home during this period and take the test at a local laboratory. Your clinic reviews the result remotely and advises on next steps.
You can fly the day after transfer without any medical concern. Cabin pressure and altitude do not affect implantation. Some patients prefer to stay in Thailand for the pregnancy blood test at day 10–12, but most fly home during the two-week wait and take the test locally. Your clinic will review the result remotely.
Resume normal daily activities. Walk, eat well, sleep well, and stay occupied. There is no evidence that bed rest improves outcomes — in fact, gentle movement is encouraged. Avoid heavy lifting, vigorous exercise, and hot baths. Continue all prescribed progesterone medication exactly as directed. The waiting is the hardest part, and your coordinator is available for support throughout.
A beta-hCG blood test at 10–12 days post-transfer gives the definitive answer. If positive, an early ultrasound at six to seven weeks confirms a heartbeat. If negative, a review consultation analyses the cycle — lining quality, transfer difficulty, embryo grade — and determines adjustments for the next attempt.
FET is one of the lowest-risk procedures in fertility treatment. There is no ovarian stimulation, no egg retrieval, and no sedation — the physical demands are minimal.
FET carries significantly lower physical risk than a full stimulated IVF cycle. The main challenge is managing expectations — even a genetically normal embryo transferred to a well-prepared lining does not guarantee pregnancy. Your specialist will discuss realistic probabilities based on your embryo quality and history.
Yes. FET is a routine procedure at all accredited fertility clinics in Thailand. The physical risks are minimal — there is no surgery, no sedation, and no ovarian stimulation. The embryology team follows strict thawing protocols with documented survival rates. Double-witnessing procedures ensure correct embryo identification at every step.
Endometrial preparation quality is the controllable factor. Make sure your lining reaches adequate thickness with the right hormonal support before transfer proceeds. If you have had previous failed transfers despite good embryos, ask about ERA testing — a biopsy that identifies your personal implantation window, which can differ from the standard timing by a day or more.
If the transfer is unsuccessful, the next step depends on how many frozen embryos remain and what the cycle review reveals. If more embryos are available, a subsequent FET can be attempted, sometimes with adjusted medication or timing. If no embryos remain, a new stimulation cycle may be needed. Each failed transfer provides clinical data that helps refine the next approach.
FET success depends on embryology quality, lining preparation, and precise timing. Here is what matters when choosing where to transfer.
Our partner clinics operate high-volume embryology labs with documented post-thaw survival rates above 95%. They handle hundreds of FET cycles per month, which means their thawing and transfer protocols are well-practised and consistent. Continuity matters — returning to the clinic where your embryos are stored avoids the logistics and risk of cryoshipping.
The fertility specialist managing your FET cycle oversees lining preparation, confirms readiness for transfer, and makes the call on timing. At our partner clinics, these decisions are made by board-certified reproductive endocrinologists who manage FET as a significant part of their caseload, not as an afterthought.
Ask for the clinic's post-thaw embryo survival rate — it should be consistently above 95%. Confirm they offer both medicated and natural cycle FET protocols. Check whether ERA testing is available if you have had previous failed transfers. And ask about their single embryo transfer policy — transferring one good blastocyst at a time is the standard of care at responsible clinics.
FET outcomes are comparable to fresh transfers and, in some settings, slightly better. Here is what the data shows.
Pregnancy rates per FET are 40–55% for women under 35 when transferring a PGT-A-tested euploid blastocyst. Without genetic testing, rates are slightly lower as some transferred embryos will be chromosomally abnormal. Multiple large studies confirm that frozen transfers produce outcomes at least equal to fresh transfers — the uterine environment is often more receptive when it has not been exposed to stimulation hormones.
Embryo quality is the primary factor — a well-graded blastocyst that survived thawing intact has strong implantation potential. Endometrial preparation quality matters next — adequate thickness and correct hormonal timing are essential. Your age at the time of egg retrieval (not the time of transfer) determines egg quality. If you are using PGT-A-tested embryos, the per-transfer success rate is higher because chromosomally abnormal embryos have already been excluded.
An FET cycle is shorter and simpler than a full IVF round — most patients need 7–10 days in Thailand.
For a medicated FET, you can start oestrogen medication at home and fly to Thailand once your lining is approaching target thickness, reducing your in-country stay to as few as five to seven days. For a natural cycle FET, arrive a few days earlier for ovulation monitoring. Most patients plan for 7–10 days total to allow for monitoring, transfer, and a follow-up consultation before flying home.
Your quote covers specialist consultations, endometrial monitoring (ultrasound and blood tests), embryo thawing, the transfer procedure, and a follow-up blood test. Medication for lining preparation and any embryo storage fees are quoted separately. Your coordinator manages scheduling and clinic communication throughout.
Most patients returning for FET already know the city and the clinic. Your coordinator can help with hotel recommendations near the clinic and schedule your appointments to minimise time away from home. If you are considering having embryos shipped to a clinic closer to home instead, discuss this with your coordinator — in most cases, returning to Thailand is simpler and cheaper.
Everything you need to know before your treatment
Patient Care Director
Last reviewed: March 25, 2026
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