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The research objective was to study the spectrum of the vagina and endometrium microorganisms in women with chronic endometritis (CE) in order to take adequate therapeutic measures. Methods and Results: We did a cross-sectional study in 47 women (average age of 35.38±5.19 years) with histologically confirmed CE. The vaginal microbiota and endometrial biopsies were assessed using microbiological research methods in accordance with the medical technology "Integral assessment of the state of the vaginal microbiota." To identify the share of different types of microorganisms in the structure of the biocenosis, the coefficient of constancy of the species (C) was used. Only 19% of patients had a titer of Lactobacillus spp. within the age norm, while the deficit was observed in 80% of women. Among the representatives of Enterobacteriaecae, Escherichia coli and Klebsiella aerogenes were sown, which are considered to be random species (C=11% and C=2.1%, respectively). The average titer for E. coli was 3.6±1.3 lg CFU/swab and for K. aerogenes - 2.14 lg CFU/swab. An atypical variant of E. coli with hemolytic properties was found in only one sample. All isolates of the genus Staphylococcus were also random species (C did not exceed 25%). Coagulase-negative staphylococci (CoNS) were detected in 7 patients (C=15%), while the average titer was 2.1±0.4 lg CFU/swab. S. aureus was isolated from only one patient at a titer of 5 lg CFU/swab. Corynebacterium spp. were isolated in 11% of cases (C = 11% - random species), in a titer of 3.2±0.8 lg CFU/swab. Enterococcus spp. also belonged to random species (C=23.4%). At the same time, E. faecalis was inoculated in 19% of cases and E. faecium was sown in 4.3%, the average titer of which was 3.1±0.9 and 5 lg CFU/swab. Streptococcus spp. were recorded in only one case at a concentration of 5 lg CFU/swab. Fungi of the Candida were isolated as a random species in 8.5% of cases. The growth of microorganisms in endometrial samples was obtained only in 3 examined women with CE (6.4% of cases). The endometrial microbiota were represented only by random species, for which the C index ranged from 2.1% to 4.3%. Conclusion: The microbiological study of the microbiota of vaginal discharge showed the presence of dysbiotic disorders with a significant deficiency of lactobacilli (80%) without the dominance of representatives of the Lactobacillus spp. In the structure of opportunistic microflora, Escherichia coli, coagulase-negative staphylococcus, Enterococcus spp., and E. faecalis prevailed as random species. Representatives of the microbiota in endometrial biopsies were identified only in 6.4% of cases, and are represented by random species.