How did I get bacterial vaginosis?
Bacterial vaginosis is an overgrowth of bacteria that are normally in the vagina. Researchers do not completely understand why it occurs. However, activities such as douching or having a new sexual partner or multiple sexual partners can put you at greater risk for bacterial vaginosis. While it's more common in women who are sexually active, it also occurs in women who are not sexually active. It's not usually necessary for your sex partner to be treated.
Written by familydoctor.org editorial staff