Frozen Embryo Transfer (FET)
A frozen embryo transfer uses an embryo that was frozen during an earlier IVF cycle. The embryo is thawed and transferred to the uterus in a later, generally simpler cycle that does not require another egg retrieval.
Why embryos are frozen
When an IVF cycle produces more than one good-quality embryo, surplus embryos can be frozen using a rapid technique called vitrification. This lets you attempt pregnancy again later without repeating full ovarian stimulation and egg collection, and supports family planning over time.
How an FET cycle works
The uterine lining is prepared, either in a natural cycle or with medication, and monitored to identify the best time for transfer. On the chosen day, a frozen embryo is carefully thawed in the laboratory and transferred using a thin catheter, much like a fresh transfer. A pregnancy test follows after a short waiting period.
Advantages and planning for travel
FET can be gentler on the body than a fresh stimulated cycle and can allow the lining to be optimised. For international patients, an FET visit is often shorter than a full IVF cycle, which can simplify travel planning. Ask the clinic about storage arrangements, thaw survival rates, and how an FET would be scheduled around your travel.
Common questions
For many patients, FET success rates are comparable to fresh transfers, and in some situations FET is preferred. Your specialist can advise based on your individual case.
Embryos can be stored for extended periods, subject to consent and the storage rules that apply. Confirm storage terms and any time limits with the clinic.
Other fertility treatments
IVF (In-Vitro Fertilisation)
The core assisted-reproduction treatment: eggs and sperm are combined in the laboratory and an embryo is transferred to the uterus.
Learn more →ICSI
A single healthy sperm is injected directly into each mature egg — often used for male-factor infertility.
Learn more →IUI (Intrauterine Insemination)
A less invasive, lower-cost option in which prepared sperm is placed directly into the uterus around ovulation.
Learn more →Egg Donation
Uses eggs from a screened donor, an option when a patient's own eggs are unlikely to succeed.
Learn more →Sperm Donation
Uses sperm from a screened donor for severe male-factor infertility, or family-building situations where permitted by law.
Learn more →Fertility Preservation
Freezing eggs, sperm or embryos to preserve future fertility, including before medical treatment.
Learn more →PGT (Genetic Testing)
Pre-implantation genetic testing screens embryos for certain conditions before transfer.
Learn more →