Synechiae are intrauterine adhesions that affect the fertility of women. They are most often of post-traumatic origin. The management of pregnancy abortions in the first trimester and post-delivery retention are the main contributing factors. Synechiae is responsible for cycle disorders and repeated pregnancy loss. Hysteroscopy is the reference method for its diagnosis and treatment. The surgical objective is the restoration of a normal sized cavity and a functional endometrium to allow fertilization and implantation. The use of small diameter (5mm) hysteroscopes and no energy or bipolar energy instruments are recommended. Echo guidance facilitates the treatment of severe synechiae and limits the risk of intraoperative perforation. The main risk of treatment is recurrence, particularly in severe cases where multiple operating times are sometimes necessary. An office hysteroscopy at 6 weeks is recommended to identify and treat these recurrences. Different physical, molecular or cellular methods are studied as primary and secondary prevention of postoperative synechiae. The objective of this review is to provide an update on the treatment of synechiae in the context of infertility.Copyright © 2021. Published by Elsevier Masson SAS.
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