Artificial abortion is one of the leading causes of gynecological morbidity, infertility, negatively affects the course of subsequent pregnancy and childbirth. 124 patients were examined and treated after abortion (average age 34.8±1.7 years). The examined were divided into 3 groups. 52 (42.0%) women were assigned to the main group I, for whom antibiotics with magneto-IR light laser and ozone were used for prophylaxis. The main group II included 24 (19.3%) patients who received magneto-IR light-laser and ozone therapy, without antibiotics. The control subgroup consisted of 48 (38.7%) patients without prevention of complications. During bacterioscopy, the number of leukocytes above 30 in the field of vision was detected in 28 (53.9%) of the main group I, 13 (54.1%) of II and 25 (52.0%) of the control group. Gram-positive and gram-negative rods were detected in 9 (17.3%), 4 (16.7%) and 8 (16.7%); coccal flora in 12 (23.0%), 6 (25.0%) and 11 (23.0%), respectively. Mycelium and spores of Candida albicans fungus were isolated in 10 (19.2%) patients of the main group I, 5 (20.9%) II and 9 (18.8%) of the control group; "key" cells – in 6 (11.5%), 3 (12.5%) and 5 (10.4%), respectively. Gonococci and trichomonas were not detected. With the method "Femoflor 16" Lactobacillus spp. It was found in about half of the examined patients, after treatment it increased in all groups (96.1%, 91.7% and 85.4%, respectively). Facultative anaerobic organisms were identified in the main group I: Enterobacteriaceae spp. in 17.3% of observations; Streptococcus spp. in 7,7%; Staphylococcus spp. in 7.7%; main group II Enterobacteriaceae spp. in 16.7%; Streptococcus spp. in 8.3%; Staphylococcus spp. in 4.1%. The frequency of microorganisms in the control group was 16.7%, 8.3% and 8.3%, respectively. After treatment, the number of microorganisms was reduced by 2–3 times. Among obligate-anaerobic microorganisms, associations were found: Gardnerella vaginalis + Prevotella bivia + Porphyromonas spp. in 13.4%, 12.5% and 14.5%. After treatment, the frequency of their detection decreased by 2–3 times – to 3.9%, 4.1% and 6.2%, respectively.