Bacterial vaginosis (BV) is a common condition that is related to alterations in the normal vaginal flora. It is the most common cause of vaginitis and has a recurrence rate of approximately 20%-40% at one month after therapy.
Information on the prevalence of BV is incomplete since BV is not reportable. National data show that the prevalence is 29% but varies by population: 5%-25% in college students, 12%-61% in STD patients.
Organisms associated with BV do not persist in the male urethra, but may be present under the foreskin of uncircumcised men. BV has been identified in female same-sex partnerships.
BV has been linked to premature rupture of membranes, premature delivery, low-birthweight delivery, acquisition of HIV and STDs, development of pelvic inflammatory disease (PID), and post-operation infections after gynecological procedures. Occurrence of BV may be related to sexual activity, but BV is not considered a sexually transmitted disease.