Sometimes, our body sends signals that something isn’t quite right. One of the most noticeable and concerning signs is an unusual odor — especially a persistent fishy smell. While it might be embarrassing to talk about, doctors stress that it should never be ignored.

A fishy smell is most often linked to bacterial imbalance. In women, the most common cause is bacterial vaginosis (BV), a condition where harmful bacteria outgrow the good ones in the vaginal area. This imbalance produces a strong, unpleasant odor that is often more noticeable after intimacy. Other symptoms may include itching, unusual discharge, or discomfort, but sometimes the smell is the only warning sign.

For men, a fishy odor is less common, but it can sometimes appear due to urinary tract infections (UTIs), poor hygiene, or certain skin infections. In rare cases, it may be connected to a metabolic condition where the body cannot properly break down certain compounds, leading to an odor in sweat, breath, or urine.

Another possible cause is sexually transmitted infections (STIs). Trichomoniasis, for example, is known to create a fishy smell along with discharge and irritation. Because STIs can spread silently, recognizing unusual odors becomes an important clue for early diagnosis.

Sometimes, the odor may not be related to infection at all. Diet plays a role too. Eating large amounts of fish, garlic, or certain supplements like choline can create a temporary smell in sweat or urine. This usually disappears within a day or two and is not harmful.

When should you see a doctor?

• If the fishy odor lasts more than a few days
• If it is accompanied by discharge, itching, or burning sensations
• If you experience pain during urination or intimacy
• If the smell appears suddenly and is very strong

Ignoring the odor can lead to complications. Untreated bacterial vaginosis, for example, can increase the risk of pelvic infections or complications during pregnancy. STIs left untreated may cause long-term reproductive issues. That’s why medical experts emphasize the importance of seeking care early rather than hoping it goes away on its own.

What you can do at home:

• Maintain good personal hygiene with mild, unscented soaps
• Avoid douching, as it can upset the natural balance of bacteria
• Wear breathable cotton underwear to reduce moisture buildup
• Stay hydrated to help your body flush out toxins

Final Thought
A fishy odor may feel embarrassing, but it is your body’s way of asking for attention. Don’t ignore it or try to mask it with perfumes or sprays. If it persists, the safest choice is to consult a doctor, get tested, and treat the root cause. Your health — and peace of mind — is worth it.