Definition for View source for Bacterial Vaginosis

Bacteria infecting the warm, moist vaginal lining cause '''bacterial vaginosis'''. The condition is characterized by a white discharge with a “fishy” odor. Some itching or irritation may also occur. Up to half of cases are asymptomatic. Infection results when the normal lactobacilli of the vagina are replaced with a large number of facultatively or obligate anaerobic bacteria. A decline in the number of lactobacilli results in a pH higher than the normal 4.5, which either promotes or allows the growth of the pathogenic bacteria. Because douching reduces the normal population of lactobacilli in the vagina, it is a primary risk factor. A history of multiple sexual partners is also a risk factor; however, bacterial vaginosis is not considered an STD. Treatment is with antibacterial drugs. Other than avoidance of douching and abstinence, there are no known preventive measures.