hi this is from webmd it’s the part just for you to read. bacterial vaginosis is caused by an imbalance of the organisms (flora) that naturallyexist in the vagina. normally about 95% of vaginal flora are lactobacillus bacteria. (these types are unique to humans different from the lactobacillus in yogurt. ) these lactobacilli help keep the vaginal ph level low and prevent overgrowth of other types of organisms. women with bacterial vaginosis have fewer lactobacillus organisms than normal and more of other types of bacteria. experts do not yet understand what causes this imbalance. although the specific cause isn't known a number of health and lifestyle factors have been linked to bacterial vaginosis things that increase your risk of getting bacterial vaginosis include: having more than one sex partner or having a new sex partner. smoking. douching. not using condoms. although bacterial vaginosis can be triggered by or get worse from sexual activity it does not appear to be an infection that is passed from man to woman. so experts do not consider bacterial vaginosis to be a male-female sexually transmitted infection. bacterial vaginosis may be passed from woman to woman during sexual contact. do hope it helps you. good luck
can a male contact bacteria vaginosis from one woman and pass it on to another woman? . can a woman get bacteria vaginosis on her own? how and why?