The vagina contains many types of bacteria. Bacterial vaginosis occurs when the normal balance of bacteria in the vagina is disrupted. Bacterial vaginosis is not a sexually transmitted infection (STI), but having new or multiple sex partners can change the balance of bacteria in the vagina.
Many people with bacterial vaginosis do not have symptoms. If symptoms occur, they can include:
Avoid vaginal douching — this may lead to infections, such as bacterial vaginosis. Having new or multiple sex partners likely increases the risk of bacterial vaginosis.
Your health care providers can test for bacterial vaginosis with a sample of vaginal fluid.
Bacterial vaginosis is treated with pills or vaginal gel.
Bacterial vaginosis is not an STI, so you will not spread the infection to your sex partner(s). However, if a partner experiences any symptoms of bacterial vaginosis, they should see their health care provider.
Pregnant people who experience symptoms of bacterial vaginosis should be tested as soon as those symptoms appear. Bacterial vaginosis can cause premature birth and infection of the womb after delivery.