Bacterial Vaginosis (BV) Treatment in Korea: A Foreigner's Guide

October 5, 2026

Symptoms, testing and antibiotic treatment for the most common vaginal infection

Quick answer: Bacterial vaginosis (BV) is an imbalance of vaginal bacteria that often causes thin gray-white discharge with a fishy smell. It is not an STI but is more common with new partners and douching. In Korea, an OB-GYN diagnoses it with a quick swab and treats it with antibiotic tablets or vaginal gel.

Bacterial vaginosis (BV) is the most common cause of abnormal vaginal discharge in women of reproductive age. It's not a sexually transmitted infection in the traditional sense, but it is linked to sexual activity and can come back. Here's what foreign women in Korea should know about BV.

Medical vials

What Is BV?

BV happens when the normal balance of vaginal bacteria changes — protective lactobacilli decrease and other bacteria overgrow.

Common Symptoms

  • Thin, gray or white discharge
  • A fishy odor, often stronger after sex or during periods
  • Mild itching or irritation in some women

Many women with BV have no symptoms.

Risk Factors

  • New or multiple sexual partners
  • Douching or using scented vaginal products
  • Smoking
  • Having a copper IUD in some cases

How It's Diagnosed

An OB-GYN can diagnose BV with a quick exam and a vaginal swab. Testing also helps rule out yeast infections, trichomoniasis and other STIs that cause similar symptoms.

Treatment

  • Oral antibiotics such as metronidazole
  • Vaginal antibiotic gels or creams

Avoid alcohol while taking metronidazole and for a short time afterwards, as advised by your doctor. Complete the full course even if symptoms improve.

Why Treat BV?

Untreated BV can increase the risk of STIs, pelvic infections and, in pregnancy, complications such as preterm birth. If you're pregnant and have symptoms, see your doctor promptly.

When BV Comes Back

BV recurs in many women within months. If you have repeated episodes, your doctor may recommend a longer course or maintenance treatment.

Prevention Tips

  • Avoid douching and scented washes
  • Use condoms
  • Don't smoke

Frequently Asked Questions

Is BV an STI?

No, but sexual activity can affect vaginal bacteria and raise the risk.

Can BV go away without treatment?

Sometimes, but treatment is recommended if you have symptoms, are pregnant or are having a procedure.

Why does BV keep coming back?

Recurrence is common; a longer course or maintenance treatment may be advised.

Related Guides

Book an English-Speaking OB-GYN Visit in Gangnam

Sinsoe Women's Clinic is a female-led OB-GYN clinic at 537 Nonhyeon-ro, Gangnam-gu, Seoul, a short walk from Eonju Station (Line 9, Exit 7) and Yeoksam Station (Line 2, Exit 6). All physicians are female, board-certified OB-GYNs, and consultations are available in English. Message us on WhatsApp (+82-10-9517-5719) to book.

Hours: Mon & Fri 10:00–20:00 · Tue–Thu 10:00–19:00 · Sat 10:00–16:00 · Closed Sundays

This article is for general information only and is not a substitute for medical advice. Prices and procedures can change — please confirm details directly with the clinic.

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