Determination of risk factors and clinical features of purulent-inflammatory diseases of the pelvic organs given the microbial factor. Material and methods. A retrospective analysis of medical records of 47 patients undergoing urgent surgical treatment for purulent-inflammatory diseases of the pelvic organs in the city clinical hospital №1 of the city of Odessa in the gynecological ward for 2014-2019 was conducted. Results. The average age of the patients was 38.3±1.5 years. Patients were in the hospital on average 10.5±0.5 days. It was found that the onset of sexual activity in patients was 14.6±1.66 years. Postoperative purulent-septic complications were observed in 18 women (38.3%). 13 women in life had an artificial termination of pregnancy, that is, 72.2% (RR=1.22). For 30 cases (63.8%) of positive intraoperative bacterial culture, 22 women (73.3%) had a history of artificial termination of pregnancy (OR=1.93). Monoculture was determined in 24 patients (80.0%), and microbial associations in 6 patients (20.0%). A relationship was found between the presence of microbial association and the presence in the woman's history of artificial abortions (RR=1.67). Sexually transmitted diseases during history taking were noted by 19 women, which amounted to 40.4%. Of these, postoperative purulent-septic complications were observed in 12 patients (RR=2.94). Conclusions. 1. When assessing the relative risk, it was found that previously transmitted sexually transmitted diseases, artificial abortions, an early debut of sexual activity, a low level of contraceptive culture and promiscuity are of the greatest importance for the development of purulent-inflammatory diseases of the pelvic organs. 2. It is shown that the presence in a woman's history of artificial abortions increases the risks of a purulent-inflammatory process. So out of 18 patients in whom the development of postoperative purulent-septic complications was observed, 13 women had a history of artificial termination of pregnancy, that is, 72.2% (RR=1.22). 3. The frequency of purulent-septic complications depends on the severity of the patient's condition and signs of general intoxication. So, in patients undergoing community-acquired abortion, the incidence of purulent-septic complications was 100%, and the average number of leukocytes was 22.0±3.0 (RR=3.3, p <0.05).