Cryopreservation (freezing) can provide an increased cumulative pregnancy rate while decreasing the risk of multiple gestations and the risk of ovarian hyperstimulation syndrome. Cryopreservation also provides an additional chance of pregnancy in a treatment cycle which does not involve full ovarian stimulation and oocyte retrieval.
# Initial exposure to cryoprotectants
# Cooling to sub zero temperature
# Storage and thawing
# Dilution and removal of cryoprotectants
# Those at risk of losing ovarian function due to pelvic disease like severe endometriosis and infections.
# Those who wish to delay childbearing
# Donor programme where there is a possibility of oocyte banks.
# Single mothers/divorcees
# Premature ovarian failure
# Those women who are likely to lose ovarian function following cancer chemotherapy or radiation
> An egg bank facility would make donor programmes a cheaper option when there will be no need for synchronizing the treatment cycle. Just like a sperm bank women will get to use oocytes frozen from potential donors.
> If a couple opt to step out of a relationship they still would have a legal tangle regarding ownership of frozen embryos. Hence freezing individual gametes would save trouble in decision making.