Cryopreservation
Survival rate describes how many vitrified eggs or embryos are usable after warming. For blastocysts it is typically high in experienced laboratories; egg survival is generally slightly lower. Ask your clinic for its own current figures rather than published averages.
Also known as: thaw survival
Sources
- European Society of Human Reproduction and Embryology (eshre.eu)
- Royal Australian and New Zealand College of Obstetricians and Gynaecologists (ranzcog.edu.au)
Last reviewed: 10 September 2026. Written by the Antega Editorial Team. General information only — always follow the advice of your own clinic, doctor or pharmacist.