Bacterial vaginosis: Understanding Symptoms and Treatment Choices

Bacterial vaginosis, or BV, involves a change in the community of bacteria in the vagina. It can cause thin discharge and a fishy odor, although some people have no symptoms. Diagnosis brings together the clinical picture and appropriate testing rather than relying on smell alone.

Establish what needs treatment

A clinician may examine vaginal fluid using clinical criteria, microscopy, or an appropriate laboratory test. A home acidity result is not a complete diagnosis, and detecting one bacterium alone does not necessarily establish BV.

Our gray discharge guide explains the symptom pattern. Other conditions can overlap, so mention itching, pain, unusual bleeding, and any medicines already tried.

Discuss suitable antibiotic options

Symptomatic BV is generally treated with antibiotics. Options include oral treatment or medicine used inside the vagina, such as metronidazole or clindamycin formulations. The choice depends on your circumstances, previous treatment, tolerance, and pregnancy status.

Follow the prescribed course and product instructions. Ask about interactions, adverse effects, and sex during treatment. Some vaginal formulations can weaken latex condoms or diaphragms, so protection advice needs to match the actual product.

Antifungal thrush medicine does not treat BV. Our thrush and BV comparison explains why the distinction matters.

Plan for symptoms that return

BV can recur even after an appropriate course. Return for review if symptoms persist or come back. A clinician may reconsider the diagnosis and discuss a different or longer treatment approach; repeated symptoms are not a reason to use leftover antibiotics indefinitely.

Ask about testing for sexually transmitted infections as part of the assessment. BV and an STI are not interchangeable diagnoses, and they can require different tests and care.

Include current partner advice

Newer guidance supports discussing treatment of an ongoing sexual partner to reduce recurrence, particularly when BV repeatedly returns. Evidence and treatment choices depend on the partnership and clinical circumstances. Ask the treating clinician whether this should be part of your plan.

Do not share your prescription or assume every partner needs the same medicine. Exchange of BV associated bacteria does not itself establish infidelity.

Avoid adding internal cleansing

Douching does not treat BV and may increase recurrence risk. Gentle external care is sufficient. If you are pregnant and have symptoms, contact your clinician or maternity service for appropriate assessment and treatment rather than starting an old prescription.