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Causes
By Mayo Clinic staffBacterial vaginosis results from an overgrowth of one of several organisms normally present in your vagina. Usually, "good" bacteria (lactobacilli) outnumber "bad" bacteria (anaerobes) in your vagina. But if anaerobic bacteria become too numerous, they upset the natural balance of microorganisms in your vagina and bacterial vaginosis results.
Bacterial vaginosis can spread during sexual intercourse, but it also occurs in people who aren't sexually active.
References
- Bacterial vaginosis fact sheet. Centers for Disease Control and Prevention. http://www.cdc.gov/std/bv/STDFact-Bacterial-Vaginosis.htm. Accessed July 21, 2010.
- Nyirjesy P. Vulvovaginal candidiasis and bacterial vaginosis. Infectious Disease Clinics of North America. 2008;22:637.
- ACOG Committee on Practice Bulletins — Gynecology. Vaginitis. Obstetrics and Gynecology. 2006;107:1195.
- Sexually transmitted diseases treatment guidelines 2006. Centers for Disease Control and Prevention. http://www.cdc.gov/std/treatment/2006/vaginal-discharge.htm. Accessed July 21, 2010.
- Sobel JD. Bacterial vaginosis. http://www.uptodate.com/home/index.html. Accessed July 21, 2010.
- Boyd E, et al. Vaginitis: Bacterial vaginosis. In: Hillard PA. The 5-Minute Obstetrics and Gynecology Consult. Philadelphia, Pa.: Lippincott Williams & Wilkins; 2008:204.
- Boardman LA, et al. Benign vulvovaginal disorders. In: Gibbs RS, et al. Danforth's Obstetrics and Gynecology. 10th ed. Philadelphia, Pa.: Lippincott Williams & Wilkins; 2008:625.
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