What is bv

Understanding Bacterial Vaginosis

Bacterial vaginosis is not technically a true infection caused by a single pathogen, but rather an imbalance of the vaginal microbiota. The healthy vagina is dominated by Lactobacillus bacteria, which maintain an acidic environment that prevents harmful bacteria from thriving. In BV, this balance is disrupted, allowing anaerobic bacteria to proliferate.

Causes and Risk Factors

The exact cause of BV remains unclear, but several risk factors increase likelihood:

• New or multiple sexual partners: Sexual activity can disrupt the vaginal microbiota
• Douching: Disrupts natural vaginal bacteria
• Hormonal changes: Related to menstrual cycle, pregnancy, or hormonal contraception
• Antibiotic use: Can eliminate protective Lactobacillus species
• Smoking and stress: May affect vaginal immune function

Symptoms

Many women with BV have no symptoms and discover it only during medical screening. When symptoms occur, they typically include:

• Thin, gray, white, or greenish vaginal discharge
• Strong fishy odor, especially after sexual intercourse
• Vaginal itching or burning (though less common than discharge)
• Pelvic discomfort or pain during urination

Health Complications

Untreated BV increases the risk of pelvic inflammatory disease, ectopic pregnancy, and preterm labor in pregnant women. Additionally, BV significantly raises susceptibility to sexually transmitted infections including chlamydia, gonorrhea, and HIV.

Treatment and Prevention

BV is highly treatable with prescription antibiotics such as metronidazole (Flagyl) or clindamycin, typically administered orally or vaginally. Prevention strategies include avoiding douching, limiting sexual partners, practicing safer sex, and maintaining overall vaginal health. However, recurrence is common, occurring in 15-30% of treated women.