Cryopreservation of human gametes and embryos has an important place in IVF practice. Transfer of a 2-3 embryos is a general practice to reduce higher order pregnancies. In this case, the fate of excess embryos should be considered. Cryopreservation of excess embryos provides the patient both psychological and economical relief.

Embryo cryopreservation provides several embryos ready for transfer and relieves the patient from physical burden, the price of ovulation induction and oocyte pick-up. As a consequence, cryopreservation of the excess embryos provides the patient both an economical and psychological advantage. 

In case of oocyte recipients the presence of frozen embryos provides a low-cost subsequent treatment.