Fertility Glossary

Vitrification

Ultra-rapid freezing of eggs and embryos.

Vitrification is the standard modern freezing method and gives high survival rates after thawing, which is why frozen transfers now perform comparably to fresh transfers.

Related terms

Cryopreservation

Freezing eggs, sperm or embryos for future use.

Frozen embryo transfer (FET)

Transfer of an embryo that was frozen in an earlier cycle.

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