Bacterial vaginosis
Bacterial vaginosis (BV) is a common vaginal condition caused by an overgrowth of certain bacteria, leading to a change in the natural vaginal balance. While not a classic infection, it can cause discomfort and increase susceptibility to other health issues.
Overview
Bacterial vaginosis (BV) is a common vaginal condition caused by an overgrowth of certain bacteria, leading to a change in the natural vaginal balance. While not a classic infection, it can cause discomfort and increase susceptibility to other health issues.
Symptoms
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Causes
- •overgrowth of anaerobic bacteria
- •depletion of healthy lactobacilli
- •imbalance of vaginal flora
Risk factors
- •multiple or new sexual partners
- •frequent douching
- •natural lack of lactobacilli bacteria
- •cigarette smoking
How it progresses
3 stages- OnsetSymptoms appear, often triggered by a known cause.Often missed
- Active phaseSymptoms peak; self-care or short treatment usually helps.
- ResolutionSymptoms ease over days to weeks with proper care.
How it's diagnosed
- •pelvic exam
- •vaginal pH test (above 4.5)
- •microscopic examination (clue cells)
- •whiff test using potassium hydroxide
Treatment options
General educational information only — no dosage advice. Always follow guidance from a qualified clinician.
- •oral antibiotic medication (metronidazole)
- •topical antibiotic creams or gels
- •clindamycin treatments
- •addressing underlying lifestyle triggers
- •using unscented soaps only
- •avoiding douching products
- •wearing breathable cotton underwear
- •taking probiotic supplements
Complications
- •Reduced quality of life
- •Worsening symptoms over time
- •Recurrence of bacterial vaginosis
Prevention
- •Maintain a healthy lifestyle
- •See a clinician for routine check-ups
When to seek help
- •Symptoms persist beyond a few days
- •Symptoms interfere with daily activities
- •New or worsening symptoms appear
- •Concerning changes related to bacterial vaginosis
- fever associated with pelvic pain
- severe abdominal pain
- heavy bleeding or unusual discharge during pregnancy
In any emergency, call your local emergency number or go to the nearest emergency department.
Real-world questions
- ›Can Bacterial vaginosis cause headaches?
- ›Is Bacterial vaginosis reversible?
- ›How quickly does Bacterial vaginosis progress?
- ›Is Bacterial vaginosis hereditary?
- ›Can Bacterial vaginosis be prevented?
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Frequently asked questions
Possible causes of Bacterial vaginosis include overgrowth of anaerobic bacteria, depletion of healthy lactobacilli, imbalance of vaginal flora.
Bacterial vaginosis is generally mild, but severity can vary. Seek care if symptoms are severe or persistent.
Duration varies between individuals. Many cases improve with appropriate care, while others may persist longer and require ongoing management.
Some milder cases may improve with rest and self-care. If symptoms persist or worsen, consult a healthcare professional.
Consider seeing a clinician if symptoms are severe, persistent, worsening, or if you have any concerns related to general.
Sources
Information based on general medical references such as:
Last reviewed: May 2026