Egg Freezing in Thailand

Who can freeze eggs in Thailand?

Egg freezing for fertility preservation is available to both single women and married couples at licensed Thai clinics. There are no marital status restrictions on egg freezing itself. However, using frozen eggs for IVF and embryo transfer at a licensed Thai clinic requires the patient to be legally married to a male partner at the time of treatment — the marriage requirement applies to treatment, not to freezing and storage.

Health screening is required before starting. Patients must sign a consent form before retrieval. If you carry a bloodborne infection, clinics are required to separate infected and non-infected samples during storage.

Egg freezing vs embryo freezing in Thailand

If you are partnered and both parties are present, you can choose between freezing unfertilized eggs or fertilizing them first and freezing embryos. Embryo freezing requires legal marriage documentation and consent from both partners before any procedure takes place, whereas egg freezing for a single woman requires only the woman's own consent.

Embryos have a higher thaw-survival rate than unfertilized eggs, which is a practical reason some couples choose embryo freezing when a male partner is available. However, embryo freezing involves additional decisions about unused embryos, including storage renewal and what happens in the event of separation. Both options fall under Thailand's export prohibition.

The egg freezing process in Thailand

The process begins with baseline testing — AMH blood test and antral follicle count — to measure ovarian reserve and plan the stimulation protocol. Hormone injections are given for eight to twelve days, with monitoring scans every two to three days. When follicles reach the target size, a trigger shot is given and egg retrieval is scheduled 34 to 36 hours later.

Retrieval is performed under sedation and takes around 20 to 30 minutes. Mature eggs are assessed immediately after retrieval and vitrified. Most international patients can travel home within one to two days of the procedure. Ask your clinic upfront whether remote stimulation monitoring at a clinic near you is possible — this can significantly shorten the total time you need to be in Thailand.

Vitrification: what it means for egg quality

Thai clinics use vitrification, a rapid-freeze technique that minimizes ice crystal formation during the freezing process. Ice crystals were the primary cause of egg damage in older slow-freezing protocols. With vitrification, survival rates for mature eggs at experienced Thai centers typically exceed 80%.

Not every egg retrieved will survive the thaw cycle, and not every surviving egg will fertilize. The usable number of eggs after a complete freeze-thaw-fertilize sequence is generally lower than the number retrieved. Most specialists recommend aiming for ten to fifteen mature vitrified eggs to give a reasonable probability of at least one successful future transfer, though this target depends on your age and ovarian reserve.

How many eggs to freeze and when?

Egg quality declines with age. Women who freeze eggs before 35 typically see higher fertilization and blastocyst development rates from thawed eggs than women who freeze after 38. This does not mean egg freezing has no value after 35—it means the number of eggs required to achieve a similar probability of success increases with age, and more than one retrieval cycle may be needed.

Most Thai clinics accept patients up to around 40 for elective egg freezing, with a pre-cycle AMH test to assess whether stimulation is likely to produce a clinically useful number of eggs. If your AMH is low, discuss realistic retrieval estimates before committing to a cycle.

Export ban and storage rules

Frozen eggs cannot be exported from Thailand. If you freeze your eggs at a Bangkok or Phuket clinic, you cannot ship them to another country for future use. Any future thaw and transfer cycle must take place at the same Thai clinic where your eggs are stored.

Storage fees apply annually from the point of vitrification. Confirm the clinic's annual storage cost, their process for renewing storage consent, and the maximum storage duration they offer. Different clinics have different policies on what happens to eggs that are not renewed or reclaimed.

Egg freezing in Thailand: common questions

Can a single woman freeze her eggs in Thailand?

Yes. Egg freezing for fertility preservation is available to single women at licensed Thai clinics. Legal marriage is not required for egg freezing. It is required at the time of IVF treatment if you later want to use your frozen eggs for a transfer cycle.

Can I take my frozen eggs home after freezing in Thailand?

No. Thai law prohibits the export of frozen eggs and embryos. Any future use of eggs frozen in Thailand must take place at the Thai clinic where they were stored.

How long can I store frozen eggs in Thailand?

Storage policies vary by clinic. Annual fees apply. Confirm the maximum storage duration and the renewal process directly with your clinic before signing consent forms.

How many eggs should I aim to freeze?

Ten to fifteen mature vitrified eggs is a commonly cited minimum to give a reasonable probability of at least one successful transfer. The number you retrieve per cycle depends on age and ovarian reserve, and more than one cycle may be needed to reach this target.

What is the difference between egg freezing and embryo freezing in Thailand?

Egg freezing stores unfertilized eggs and is available to single women and married women. Embryo freezing requires fertilization first and requires both partners to be legally married and present. Both types are subject to the export ban.