Picture: Bacterial vaginosis is a condition that produces vaginal discharge from an overgrowth of normal bacteria in the vagina.
Bacterial Vaginosis

Bacterial Vaginosis

Medical Author:
Medical Editor:

Bacterial vaginosis facts

  • Bacterial vaginosis is an abnormal vaginal condition that is characterized by vaginal discharge and results from an overgrowth of normal bacteria in the vagina.
  • Bacterial vaginosis is not dangerous, but it can cause disturbing symptoms.
  • Symptoms of bacterial vaginosis are vaginal discharge and odor, although 85% of women with the condition experience no symptoms.
  • In diagnosing bacterial vaginosis, it is important to exclude other serious infections, such as gonorrhea and Chlamydia.
  • Treatment options for bacterial vaginosis include oral antibiotics and vaginal gels.
  • Serious complications of bacterial vaginosis can occur during pregnancy, and recurrence is possible even after successful treatment.

What is bacterial vaginosis?

Bacterial vaginosis is vaginal condition that can produce vaginal discharge and results from an overgrowth of normal bacteria in the vagina. In the past, the condition was called Gardnerella vaginitis, after the bacteria that were thought to cause the condition. However, the newer name, bacterial vaginosis, reflects the fact that there are a number of species of bacteria that naturally live in the vaginal area and may grow to excess. The Gardnerella organism is not the sole culprit causing the symptoms. When these multiple species of bacteria become imbalanced, a woman can have a vaginal discharge with a foul odor.

Bacterial vaginosis is not dangerous, but it can cause disturbing symptoms. Any woman with an unusual discharge should be evaluated so that more serious infections such as Chlamydia and gonorrhea, can be excluded. Symptoms may also mimic those found in yeast infections of the vagina and trichomoniasis (a sexually-transmitted infection), and these conditions must also be excluded in women with vaginal symptoms.

Bacterial vaginosis is a common condition. It is the most common vaginal infection in women of child bearing age. Studies have shown that approximately 29% of women in the U.S. are affected. Bacterial vaginosis is found in about 16% of pregnant women in the U.S. and approximately 60% of women who have a sexually-transmitted disease (STD).

Reviewed by William C. Shiel Jr., MD, FACP, FACR on 5/16/2012


Patient Comments

Viewers share their comments

Bacterial Vaginosis - Causes Question: Do you know what caused your bacterial vaginosis?
Bacterial Vaginosis - Complications Question: Did you suffer complications from bacterial vaginosis? If so, what were they?
Bacterial Vaginosis - Symptoms Question: What were your symptoms of bacterial vaginosis?
Bacterial Vaginosis - Treatment Question: What was the treatment for your bacterial vaginosis?

Bacterial Vaginosis

Bacterial Vaginosis Treatment

Treatment for bacterial vaginosis consists of antibiotics. A few antibiotic remedies are routinely used and include:

  • metronidazole(Flagyl) oral pill form or by vaginal metronidazole gel(Metrogel),
  • vaginal clindamycin cream(Cleocin), or
  • tinidazole (Tindamax).

Recurrence of bacterial vaginosis is possible even after successful treatment. More than half of those treated experience recurrent symptoms within 12 months. It is unclear why so many recurrent infections develop. With recurrent symptoms, a second course of antibiotics is generally prescribed.

Get the latest health and medical information delivered direct to your inbox FREE!