Cryopreservation of egg cells by vitrification

Purpose of the procedure

The cryopreservation of egg cells allows the preservation of a woman's fertility before an oncological/medical treatment or as part of the management of infertility. The egg cells are isolated from the follicular fluid previously collected under general anaesthesia and ultrasound control in the operating theatre. They are then frozen by vitrification and stored in liquid nitrogen at -196°C.


A contract is concluded for a period of one year and is tacitly renewed year by year. The maximum legal period of storage is five years, renewable once for another period of five years (total maximum duration: 10 years) in accordance with the Reproductive Medicine Act (RMA).

Sole exception: a longer period may be agreed with persons who, to ensure that they can have offspring, donate their egg cells to be stored before a medical treatment or performance of an activity which may make them sterile or damage their gene pool.

Medical follow-up is provided by specialist doctors in the RMU.

 Last updated on 17/07/2018 at 10:29