In bacterial vaginosis, there is excessive growth of some of the types of bacteria that normally live in the vagina. The cause is unknown, but bacterial vaginosis is more common in women who are sexually active.
Bacterial vaginosis often causes no symptoms.
However, some women have a grayish-white vaginal discharge with a fishy or musty smell and itching of the vagina or vulva. Seek medical advice if the condition persists or if it occurs during pregnancy.
Treatment with antibiotics usually clears up the problem, although it often recurs.