Every vagina has its own natural scent, and it changes during the menstrual cycle, after exercise and after sex. That is completely normal. The vagina also cleans itself, so it does not need special washes or fragrances. A strong, fishy or unusual odor, though, can be a sign of an infection that is easy to treat.
Quick answer
- A mild scent is normal and varies through your cycle.
- Wash only the outside (the vulva) with warm water and, if you like, a gentle unscented soap.
- Do not douche or use scented products inside the vagina.
- See a doctor for a strong fishy smell, unusual discharge, itching or pain.
What is a normal vaginal smell?
A healthy vagina may smell slightly musky, tangy or sour, because of the “good” bacteria (lactobacilli) that keep it slightly acidic and protect against infection. The smell can change:
- during your period (sometimes slightly metallic)
- after exercise and sweating
- after sex
- during pregnancy and menopause
Common causes of unusual odor
Bacterial vaginosis (BV)
The most common cause of a fishy smell, often stronger after sex, with thin grey or white discharge. BV happens when the balance of vaginal bacteria changes. It is not a sexually transmitted infection, but it is more common in sexually active people. It is easily treated with antibiotics from a doctor or, in some countries, a pharmacy.
Trichomoniasis
A sexually transmitted infection that can cause a strong odor, frothy yellow-green discharge, itching and soreness. It needs treatment, and partners should be treated too.
Forgotten tampon
A tampon left in for days can cause a very strong, unpleasant smell. Remove it if you can, and see a doctor if you cannot, or if you feel unwell or have a fever.
Thrush (yeast infection)
Usually causes itching and thick white discharge with little smell. It is worth knowing because people often confuse it with BV.
Sweat and hygiene
Sweat in the groin area can cause body odor on the outside, especially in tight or synthetic clothing.
Healthy hygiene tips
- Wash the vulva daily with warm water. A mild, unscented soap is fine on the outside.
- Never douche. Washing inside the vagina disturbs its natural balance and makes BV and infections more likely.
- Skip scented products: perfumed washes, wipes, sprays, bubble baths and deodorants can irritate.
- Wear cotton underwear and avoid very tight clothing, so the area can breathe.
- Change out of sweaty clothes and wet swimwear quickly.
- Change pads and tampons regularly during your period.
- Wipe from front to back after using the toilet.
- Use condoms to reduce the risk of sexually transmitted infections.
When to see a doctor
- a strong, fishy or unpleasant odor that does not go away
- discharge that changes color (grey, green, yellow), becomes frothy or much heavier
- itching, burning, soreness or pain when peeing or during sex
- bleeding between periods or after sex
- symptoms during pregnancy
Get urgent medical help if you have a high fever, a rash, or feel very unwell while using a tampon (possible toxic shock syndrome), or have severe pelvic pain.
Frequently asked questions
Is it normal for my vagina to smell?
Yes. A mild scent is healthy. It is a change from your usual smell, especially a strong fishy odor, that is worth checking.
Should I use feminine washes?
You do not need them. If you use one, choose a gentle, unscented product and use it only on the outside.
Can diet change vaginal odor?
Strong foods like garlic may slightly affect body odor, but there is no evidence that specific foods cause or cure vaginal odor.
This article is for general information and does not replace advice from your doctor. Last reviewed: November 2026.
Sources
- Cleveland Clinic: Vaginal odor
- Mayo Clinic: Vaginal odor causes
- Mayo Clinic: Bacterial vaginosis
- ACOG: Vulvovaginal health
- ACOG: Vaginitis
