Gamete quality in human in vitro fertilization

The success of in vitro fertilization and embryo transfer depends mainly on oocyte and sperm quality. As far as the oocyte is concerned, its fertilizability and capacity for subsequent development are related to intrinsic factors: quality and maturity, and extrinsic factors; quality of superovulation monitoring. These parameters have been widely studied using morphological (appearance of the oocyte-cumulus complex) and endocrine (plasma and follicular hormonology) criteria.