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Overview of Bacterial Vaginitis 
Bacterial vaginitis means infection or inflammation of the vagina from any of several infecting germs, including Gardnerella, Escherichia coli, Mycoplasma, streptococci, or staphylococci. They are contagious, and can affect all ages, but most often occur during reproductive years.
Causes of Bacterial Vaginitis
Bacteria normally exist in the vagina. Infection results when the pH and hormone balance of the vagina and surrounding tissue are disturbed. E. coli bacteria found normally in the rectum can cause infection if spread to the vagina. A number of conditions increase the likelihood of bacterial infections involving the vagina. They include: general poor health, hot weather, non-ventilating clothing, especially underwear, or any other condition that increases genital moisture, warmth and darkness, and poor hygiene (sometimes).
Signs and Symptoms of Bacterial Vaginitis
Symptoms of bacterial vaginitis vary and include vaginal discharge that has an unpleasant odor. Genital swelling, burning, itching and vaginal discomfort can occur. Inflammation from the infection causes a change in vaginal color from pale pink to red. There is discomfort during sexual intercourse.
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