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Fertility Glossary

Embryo warming

Thawing a vitrified embryo in the laboratory before transfer.

Frozen embryo transfer

Embryologists warm the embryo on the day of transfer and check it has survived. 'Thawing' and 'warming' are used interchangeably.

Also known as: embryo thawing, thaw

Last reviewed: 23 September 2026. Written by the Antega Editorial Team. General information only — always follow the advice of your own clinic, doctor or pharmacist.

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