Frozen Embryo Transfer (FET)
The Centre for Reproductive Medicine
During this procedure, egg cells are surgically removed and are fertilized by sperm collected from the patient's partner or a donor. Once fertilized, the embryo can immediately be transferred to the woman's uterus. This procedure is also known as fresh embryo transfer, and most women undergo induction of ovulation to further increase the chances of conception.
Using frozen embryo transfer, the embryos are cryopreserved in a process called vitrification, a process of flash freezing that prevents crystallization. When a woman experiences ovulation naturally, the frozen embryo can be thawed and placed in the uterus.