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Body questions / Skin

Why do I smell or sweat more now?

New body odor often arrives early in puberty. Sweat itself is not a moral failure, and expensive fragrance is not the same as hygiene.

The 30-second answer

New or stronger body odor is a normal puberty change. Apocrine glands become more active, and skin bacteria break down sweat and oils into smells.

Practical steps

Wash the places that hold odor

Armpits, feet, groin, scalp, sports gear, socks, and clothes deserve attention.

Use deodorant or antiperspirant

Deodorant addresses smell. Antiperspirant reduces sweating. Some products combine both.

Change damp clothing

Sweaty fabric can keep odor close to the skin even after the body dries.

Do not turn hygiene into shame

Some people sweat more because of genetics, climate, activity, anxiety, medication, disability, or health conditions. A person can be clean and still sweat heavily. Talk about practical care, not disgust.

When to ask a clinician

Routine care
Sweating soaks clothes, disrupts school or sleep, or causes repeated skin irritation.
Check early puberty
Strong adult-type body odor appears unusually early with other puberty signs.
Sudden change
A major new smell or sweating pattern comes with illness, weight change, fever, or medication changes.
Sources and limits: Body odor commonly begins around the start of puberty. Hyperhidrosis and some medical conditions can cause unusually heavy sweating. AAP body odor guide
Evidence reviewed July 2026. This page has not yet been individually reviewed by a named clinician.