Quote:
Bacterial vaginosis appears to be caused by an overgrowth of several types of bacteria. It is normal to have these bacteria in the vagina. However, when something upsets the balance between normal and harmful bacteria in the vagina, it can cause unpleasant symptoms.
It is not known what causes the overgrowth of harmful bacteria. Most cases of BV occur in sexually active women. Women who have more than one sexual partner or who have a woman as a partner have a greater risk of developing the problem. However, women who are not sexually active can also have BV.
Douching or using an IUD (intrauterine device) for birth control may increase your risk.
From Mosby's Nursing Consult