What are the causes of bv?

Bacterial overgrowth: Bacterial vaginosis in caused by an imbalance of bacteria in your vagina in which the "good" or "normal" bacteria are decreased and "bad" bacteria overgrow. Douching is a huge risk factor for BV because it disrupts the normal bacterial balance in your vagina.

Bacterial vaginosis…: Occurs when the normal balance of "good" bacteria in the vagina is disrupted and replaced by an overgrowth of "bad" bacteria (which are there, but in fewer numbers). Actual cause is poorly understood: may be link to multiple partners, douching, failure to complete meds given for previous episode. Bv increases risk for other std's & pid.