[Research progress of ovarian tissue cryopreservation].

Ovarian cryopreservation can save a large number of germ cells during the cryogenic process, and can restore ovarian endocrine function and ovulation potential after thawing and transplantation, which is an ideal way to retain fertility for patients with cancer. Many factors influence the effect of ovarian cryopreservation, like cryoprotectant (CPA), frozen carrier, cortical block size and freezing procedure. An efficient and standard transplantation procedure is needed to develop for further clinical application and scientific research. In order to optimize this technology, we analyzed different factors to improve the recovery of ovarian function after freezing during ovarian cryopreservation.