Intrauterine Hyaluronic Acid Gel for Prevention of Intrauterine Adhesions

Women undergoing operative hysteroscopy for removal of retained placenta after delivery will be randomized into two groups. 1. study group - immediately after operative hysteroscopy 5 ml hyaluronic acid gel will be injected into uterine cavity 2. control group - no injection 4-8 weeks after operative hysteroscopy, participants will undergo diagnostic hysteroscopy with no anesthesia , as a part of routine evaluation after removal of retained placenta in Israel. during diagnostic hysteroscopy the uterine cavity will be evaluated and the presence of adhesions and severity of adhesions will be recorded.