FERTILITY, IVF AND REPRODUCTIVE GENETICS: Edited by Emre Seli and Juan Antonio García VelascoOvarian tissue freezing current statusDonnez, Jacquesa; Dolmans, Marie-MadeleinebAuthor Information aInfertility Research Unit, Société de Recherche pour l’Infertilité (SRI) bGynecology Research Unit, Institut de Recherche Expérimentale et Clinique, Université Catholique de Louvain, Brussels, Belgium Correspondence to Jacques Donnez, MD, PhD, Société de Recherche pour l’Infertilité, Avenue Grandchamps 143, B-1150 Brussels, Belgium. E-mail: email@example.com Current Opinion in Obstetrics and Gynecology: June 2015 - Volume 27 - Issue 3 - p 222-230 doi: 10.1097/GCO.0000000000000171 Buy Metrics Abstract Purpose of review This article aims to carefully evaluate a number of critical points related to ovarian tissue freezing and presents factual data in terms of live birth rates and risks. Recent findings Reimplantation of frozen-thawed ovarian tissue remains an experimental procedure according to the American Society for Reproductive Medicine, despite almost 40 live births reported in the literature. Recent literature on the topic has focused on the risk of reimplanting malignant cells, so the present review assesses the risks according to disease. Summary This manuscript emphasizes the crucial importance of not only preserving fertility in young women but also clearly explaining to patients the different available options and their respective success rates. Some previously published reviews have reported inaccurate reimplantation success rates. In this review, we report the true picture, with a live birth rate of 25%. Ovarian tissue freezing may be combined with pickup of immature oocytes (at the time of ovarian biopsy and tissue removal) or mature oocytes (if chemotherapy can be delayed). Copyright © 2015 YEAR Wolters Kluwer Health, Inc. All rights reserved.