Infertility is one of the major health problems of patients suffering from bacterial infections. Given the high percentage of infertility, the aim of this study was to investigate the prevalence of , and in fertile and infertile women. In the prospective study, 65 infertile patients and 54 pregnant women referred to Mahdieh Hospital in Tehran were included. After transferring of vaginal swabs to the laboratory, DNA extraction and Polymerase Chain Reaction (PCR) were performed using specific primers. Of the 65 vaginal swab specimens, the prevalence of , and were as 15 (23.1%), 11 (16.9%), 9 (13.8%) and 4 (6.2%), respectively; However, these rate in fertile group was as 6 (11.1%), 3 (5.5%), 5 (9.2%) and 1 (1.8%), respectively. Bacterial infections were higher in infertile group; therefore, these bacterial agents may be associated with female infertility. Timely control and treatment of infections caused by these organisms, together with other factors, can be important in prevention and treatment of the women's infertility and thereby community health.Impact Statement Infertility is one of the most common reproductive health issues in Iran. Female reproductive system is a suitable environment for the growth of many pathogens, which may disrupt any stage of foetal formation, implantation or growth. are the most important microorganisms that have been considered in the infertility. The prevalence of and were higher in infertile women, but there was no statistically significant compared to pregnant women. These results suggest that timely control and treatment of infections caused by these organisms, along with other factors, can be used to prevent and treat women infertility and community health. Based on the results, designing and implementing national control programs to prevent subsequent complications is thought to be necessary. Comprehensive analyses of the overall prevalence of these bacteria, particularly in developing countries (including Iran), may help to carry out such a strategy.
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