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Fertility Glossary

Germinal vesicle (GV)

The earliest immature egg stage, with a visible nucleus.

Embryology

A GV egg has not started the final division needed for fertilisation. A high proportion of GV eggs can prompt a review of trigger timing.

Also known as: GV, GV oocyte

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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