ABSTRACT: The authors analyzed the treatment results of 87 patients with obstetric and gynecological peritonitis and the nature of complications in the postoperative period. All patients underwent general clinical, biochemical studies and bacteriological examinations of exudate from the abdominal cavity and various methods of treatment of peritonitis were applied. 1 - a group of 32 patients with a traditional method of treatment, 2 - a group of 55 patients with ointment sanitation of the abdominal cavity in combination with Decasan solution. The use of water-soluble ointments and Decasan solution allowed to reduce the level of microbial contamination of the abdominal cavity below the critical level on the 3rd day of treatment, the number of intra-abdominal complications from 34.3% to 23.6%, mortality from 25% to 11.8% and 74 , 7% maintain the reproductive functions of women, which allows us to recognize this method as highly effective and recommend it for widespread use in the treatment of peritonitis of obstetric and gynecological origin.