Vaginal odor is any odor that originates from the vagina. It's normal for your vagina to have a slight odor. But, a strong vaginal odor — for instance, a "fishy" smell — might be abnormal and could indicate a problem.

An abnormal vaginal odor is usually associated with other vaginal signs and symptoms such as itching, burning, irritation or discharge.

Bacterial vaginosis — an overgrowth of normally occurring vaginal bacteria — is the most common vaginal infection that causes a vaginal odor. Trichomoniasis — a sexually transmitted infection — also can lead to vaginal odor. Chlamydia and gonorrhea infections usually don't cause vaginal odors. Neither do yeast infections.

Generally, if you have vaginal odor without other vaginal symptoms, it's unlikely that your vaginal odor is abnormal.

Common causes of abnormal vaginal odor include:

1. Bacterial vaginosis
2. Poor hygiene
3. Retained or forgotten tampon
4. Trichomoniasis

Less commonly, abnormal vaginal odor may result from:

1. Rectovaginal fistula (an abnormal opening between the rectum and vagina that allows feces to leak into the vagina)
2. Cervical cancer
3. Vaginal cancer

Causes shown here are commonly associated with this symptom. Work with your doctor or other health care professional for an accurate diagnosis.

Source: mayoclinic.org

In the meantime, to minimize vaginal odor:

• Wash your external genital area. During regular baths or showers, use a very small amount of mild, unscented soap and lots of water.
• Avoid douching. All healthy vaginas contain bacteria and yeast. The normal acidity of your vagina keeps bacteria and yeast in check. But douching can actually upset this delicate balance.

Source: mayoclinic.org