Body odour in teenagers: what to know

During puberty, sweat glands in the underarms and groin become more active. Fresh sweat has little smell; odour develops when skin bacteria break down sweat and oils. Heat, sport, stress, tight synthetic clothing and leaving damp clothes on the skin can make the smell more noticeable. Body odour is not a sign of poor character or poor hygiene, and a teenager may need guidance rather than criticism.

Wash the underarms, groin and feet daily and after heavy exercise, then dry thoroughly. Apply antiperspirant to dry skin, often in the evening, following its label. Change underwear, socks and shirts after sweating; choose breathable fabrics and wash sportswear promptly. Deodorant masks odour, while antiperspirant reduces sweat. If ordinary products do not help, a clinician can discuss Prescription Antiperspirant or, for persistent excessive sweating, Botox For Sweating.

Arrange a medical assessment if odour begins suddenly, remains strong despite careful washing, or comes with a rash, sores, pain, fever, unusual discharge, marked thirst, weight change or night sweating. Seek prompt care for a rapidly spreading painful skin infection. A clinician can examine the skin, review medicines and decide whether sweating or another condition needs treatment.

Could excessive sweating be contributing to the odour? Which antiperspirant is suitable for sensitive teenage skin? Should a rash or medication be checked? When should we consider a prescription option?