Abstract: Objective To understand femal genital infection situation of mycoplasma in Chengde area ,thus to investigate the correlation of women genital Mycoplasma infection with bacterial vaginal(BV). Methodsquestionnaire was conducted. The nucleic acid(DNA) extraction and polymerase chain reaction (PCR) were used and agarose gel electrophoresis experimental technologies were applied to detect the infection of ureaplasma urealyticum(Uu) and mycoplasma hominis(Mh),and the influences between genital mycoplasma infection and bacterial vaginal were analyzed by considering the results of the questionnaire. ResultsOf 715 specimens, 285 people were infected with Uu, accounting for 39.86%. 142 people were infected with Mh, accounting for 19.86%. In all the people infected with mycoplasma, 125 were infected with bacterial vaginal, accounting for 55.31%. Conclusion OR=4.37>1, the results suggest that Uu and Mh infection could be the risk factor for women suffering from bacterial vaginosis

Key words: mycoplasma hominis, ureaplasma urealyticum, bacterial vaginal