Eggs, sperm & embryos
Oocytes develop inside follicles and are graded by maturity after retrieval. Only mature (metaphase II) oocytes can be fertilised.
Also known as: egg, ovum
Related Canada guides
Sources
- Canadian Fertility and Andrology Society (CFAS)
Last reviewed: September 9, 2026. Written by the Antega Editorial Team. General information only — always follow the advice of your own clinic, doctor or pharmacist.