Bacterial Vaginosis (BV)

Bacterial vaginosis (BV) is a type of vaginal infection caused by an imbalance of naturally occurring bacteria in the vagina. It is one of the most common vaginal infections in women of childbearing age.

Causes and Risk Factors

  • The exact cause of BV is not fully understood, but it is thought to occur when there is a disruption in the natural balance of bacteria in the vagina.
  • Risk factors for developing BV include:

Symptoms

  • The most common symptom of BV is a thin, white or gray vaginal discharge with a strong, fishy odor.
  • Other symptoms may include:
    • Vaginal itching or burning
    • Redness and swelling of the vagina
    • Painful urination
    • Pain during sex
  • Some women with BV may not experience any symptoms at all.

Diagnosis

BV is typically diagnosed based on a combination of:

  • Medical history and physical examination
  • Vaginal discharge examination, including pH testing and microscopic examination
  • Culture or DNA testing to identify the presence of specific bacteria

Treatment

BV is usually treated with antibiotics, either in the form of:

  • Metronidazole (Flagyl) tablets or gel
  • Clindamycin (Cleocin) cream or suppositories
  • Tinidazole (Tindamax) tablets

It is essential to complete the full course of treatment, even if symptoms improve before finishing the medication.

Complications and Prevention

  • If left untreated, BV can increase the risk of:
  • To reduce the risk of developing BV:
    • Avoid douching or using scented soaps and bubble baths
    • Wear breathable clothing and cotton underwear
    • Practice safe sex, including using condoms
    • Get regular check-ups with a healthcare provider

Pregnancy and BV

BV during pregnancy can increase the risk of preterm labor and birth. Pregnant women with BV should be treated with antibiotics to reduce this risk.

Recurrence

BV can recur, even after successful treatment. Women who experience recurrent BV may need to undergo further testing or receive alternative treatments.

Frequently Asked Questions (FAQs)

What is bacterial vaginosis (BV)?
A common vaginal infection caused by an imbalance of bacteria.

What are the symptoms of BV?
Abnormal vaginal discharge, odor, and sometimes itching or burning.

How is BV diagnosed?
Pelvic exam, medical history, and laboratory tests.

Is BV a sexually transmitted infection (STI)?
Not typically considered an STI, but sexual activity can contribute to its development.

Can BV be treated?
Yes, with antibiotics prescribed by a healthcare provider.

How long does it usually take to treat BV?
Typically 5-7 days of antibiotic treatment.

Can BV recur after treatment?
Yes, recurrence is common and may require repeated treatment.

Are there any complications associated with BV?
Yes, increased risk of STIs, pelvic inflammatory disease, and pregnancy complications.

How can I prevent BV?
Practice good hygiene, avoid douching, and use condoms during sex.

Can men get BV?
No, BV is a vaginal infection that affects women.

Article last updated on: 26th June 2025.
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