Excessive body odour causes: what to know

Fresh sweat is generally low in odour. Smell develops when bacteria on warm, moist areas such as the underarms, feet, and groin break down substances in sweat. Heat, exercise, tight clothing, skin folds, stress, and infrequent washing can make the smell more noticeable.

A change may also follow a skin infection, excessive sweating, a new medicine, or a health condition that changes sweat or metabolism. Odour can be present even when sweating is not obvious, so the pattern and accompanying symptoms matter.

Wash odour-prone areas gently, dry them thoroughly, change damp clothing, and choose breathable fabrics. An antiperspirant reduces sweat reaching the skin, while deodorant mainly masks or limits odour. Apply products as directed and stop if they cause a significant rash.

If ordinary products do not control heavy sweating, a clinician may recommend Prescription Antiperspirant. For selected cases of underarm sweating, Botox For Sweating can temporarily reduce sweat signals. These options require an assessment of the affected areas and your medical history.

Book an appointment when odour persists despite careful washing and clothing changes, interferes with daily life, or is accompanied by a rash, sores, pain, fever, night sweats, or a clear change in sweating. Seek prompt care for sudden severe symptoms or feeling acutely unwell.

Ask whether the smell suggests a skin problem, whether a medicine may be contributing, and whether your sweating pattern needs treatment. Discuss which product is suitable for your skin and how to use it without worsening irritation.