Egg donation is an assisted reproductive treatment which involves an in vitro fertilisation (IVF) with eggs from a donor. Thanks to this technique, women who cannot use their own eggs due to various reasons, can still get pregnant. Donor eggs are fertilised with the partner´s or donor´s sperm if necessary and the selected embryo is transferred into the uterus of the patient. As such, oocyte donation makes the miracle of life possible for women who would not be able to have children any other way.