Embryo Freezing
Approximately 50% of patients have extra embryos following their IVF cycle. These embryos can be saved for future use, providing the opportunity for additional attempts at pregnancy from a single IVF cycle. Embryo freezing or cryopreservation allows embryos to be stored by cooling them to a very low temperature and storing them in liquid nitrogen. During the freezing process, the embryos are placed in solutions that gradually remove the water from their cells. This protects them from damaging ice crystal formation during freezing.