What is bv in women

BV in Women: Overview

Bacterial vaginosis is the most prevalent vaginal infection affecting women of childbearing age worldwide. Unlike yeast infections caused by a specific fungus, BV represents a shift in the delicate balance of vaginal microorganisms. The vaginal ecosystem is typically dominated by Lactobacillus crispatus and Lactobacillus gasseri, which maintain optimal pH and prevent pathogenic bacteria from establishing.

Prevalence and Demographics

BV affects an estimated 29% of women in the United States and approximately 33% of women globally. It occurs across all ethnic groups, though some studies suggest higher prevalence in African American women. BV can affect women at any age after menarche, but is most common during reproductive years. Non-pregnant women often remain asymptomatic, discovering BV only during routine gynecological examinations.

Symptoms in Women

When symptomatic, women with BV typically report:

• Abnormal vaginal discharge: Thin, homogeneous, and gray-white or greenish in color
• Odor: Fishy smell that is often more noticeable after sexual intercourse due to alkaline semen
• Vaginal irritation: Itching, burning, or discomfort during urination or intercourse
• Pelvic discomfort: Mild pain in the lower abdomen or pelvic area

Pregnancy Considerations

BV during pregnancy requires special attention. Untreated BV in pregnant women significantly increases the risk of spontaneous abortion, preterm premature rupture of membranes, and preterm delivery. The infection may ascend into the upper reproductive tract, causing chorioamnionitis and affecting fetal development. Healthcare providers typically screen pregnant women for BV and treat infections with antibiotics safe for pregnancy, such as clindamycin.

Sexual Health Impact

Women with BV have substantially elevated risk of acquiring sexually transmitted infections, including chlamydia, gonorrhea, herpes simplex virus, and HIV. The disrupted vaginal microbiota and elevated pH reduce natural antimicrobial defenses. Additionally, BV can progress to pelvic inflammatory disease, affecting the upper reproductive tract and potentially causing infertility or ectopic pregnancy.

Treatment Options

First-line treatment involves oral metronidazole (Flagyl) or vaginal clindamycin cream. Alternative treatments include tinidazole or vaginal metronidazole gel. Treatment duration typically spans 5-7 days. Sexual partners generally do not require treatment unless the woman experiences recurrent BV. Recurrence rates remain significant at 15-30% even after successful treatment.