Oocyte

Also written as egg

Written by Zayn Miah & R KhanomLast updated 17 September 2026Not clinically reviewed

The medical term for an egg cell, the female reproductive cell that can be fertilised to form an embryo.

In plain English

It's the clinical word for an egg.

Why it matters

You'll see this word in clinic letters and lab reports, for example in 'oocyte retrieval' meaning egg collection.

Related terms

Guides that cover this

Written by patients, not clinicians. This page has not yet been reviewed by a named fertility professional, so it explains published guidance and points you to the original source instead of giving medical advice. It is not medical advice. Decisions about your treatment belong with your own clinic. Read our editorial policy and corrections policy.