What Is Egg Vitrification (Oocyte Vitrification)? Egg Vitrification is a method of freezing a woman’s eggs during the process of egg cryopreservation. Egg cryopreservation (oocyte cryopreservation) is the technology employed to extract, freeze and store a woman’s eggs. Egg cryopreservation offers a way to preserve or extend fertility and is used by women for a [...]