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Fertility Glossary

Egg freezing

Collecting and vitrifying unfertilised eggs for later use.

Eggs, sperm & embryos

Egg freezing follows the same stimulation and retrieval steps as IVF, stopping before fertilisation. Success later depends heavily on age at freezing and the number of mature eggs stored. It is used both for medical reasons before treatment that may harm fertility, and electively.

Also known as: oocyte cryopreservation, freezing my eggs, social egg freezing

Sources

  • Canadian Fertility and Andrology Society (CFAS)
  • Society of Obstetricians and Gynaecologists of Canada (SOGC) patient information

Last reviewed: September 9, 2026. Written by the Antega Editorial Team. General information only โ€” always follow the advice of your own clinic, doctor or pharmacist.

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