Therefore, diagnosis and treatment are important. Bacterial vaginosis occurs when some types of bacteria that are normally found in the vagina begin to grow in large numbers. It is unclear why this occurs, although some risk factors have been identified. Bacterial vaginosis is not transmitted during sex. Although not an STI , sex without a condom can cause BV or make it worse because of the effect of semen on bacteria in the vagina.
Some women have no symptoms.
Bacterial vaginosis has been associated with early labor and delivery in pregnant women and low birth weight in newborns. Most commonly, bacterial vaginosis is diagnosed by examination of vaginal discharge to evaluate the acidity, odor, and microscopic characteristics of the discharge. This treatment can cause side effects such as mild nausea, vomiting, and metallic taste in the mouth. Nonetheless, in order for the treatment to work it is important to take the medication as prescribed. It should not be used during early pregnancy.