Who is affected by bacterial vaginosis

Bacterial vaginosis is the most common vaginal infection among women of childbearing age in the United States. Although bacterial vaginosis is not a sexually transmitted disease, it rarely develops in women who have never been sexually active.1

  • About half of women who have bacterial vaginosis do not have symptoms.2
  • As many as 23% of pregnant women are diagnosed with bacterial vaginosis.3 Bacterial vaginosis during pregnancy more than doubles the risk of preterm delivery.4
  • Black women have higher rates of bacterial vaginosis than those of any other racial or ethnic group.5
  • Women with sexually transmitted diseases (STDs) have a higher rate of bacterial vaginosis than women without STDs.5
  • Women with only female sex partners have a higher rate of bacterial vaginosis than women with only male sex partners.5
  • Bacterial vaginosis recurs in about 1 out of 3 treated women.2
  • Sexually abused children are known to have developed bacterial vaginosis.6


Author: Caroline Rea, RN, BS, MS Last Updated: March 17, 2008
Medical Review: Kathleen Romito, MD - Family Medicine
Jeanne Marrazzo, MD, MPH - Infectious Disease

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