Sweat itself is almost odourless. Body odour happens when bacteria on the skin break down sweat, especially from glands in the armpits and groin. It’s normal, but simple habits can keep it under control.
Imagine your teenager suddenly needing deodorant, and getting embarrassed after a comment at school. Or noticing a stronger smell yourself after long shifts in synthetic scrubs. A few small changes in routine and fabric can make a big difference.
Practical tips
- Wash daily with soap, especially armpits, groin and feet, and dry thoroughly
- Use an antiperspirant (reduces sweat) or deodorant (reduces smell), ideally applied at night
- Wear breathable natural fabrics and change clothes after sweating
- Wash clothes regularly; bacteria can stay in fabrics
- Trim underarm hair if you wish, which can reduce odour
- Notice whether foods such as garlic, spices or alcohol affect you
But when could it be a health problem?
See a doctor if your body odour suddenly changes or becomes much stronger without explanation, or if you notice a fruity, fishy or bleach-like smell. Changes can sometimes be linked to diabetes, kidney or liver problems, infections, hormonal changes or a rare condition called trimethylaminuria. Excessive sweating may also be treatable.
Your next step: Try applying antiperspirant at bedtime, on clean dry skin, for a week. It often works much better than in the morning.
Sources: NHS (Body odour), American Academy of Dermatology, International Hyperhidrosis Society. This guide is for general information and does not replace advice from your own nurse, doctor or pharmacist.
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