What a change in body odour can tell you about your health
This article explains the biological causes of body odour, noting that it is typically a result of bacteria breaking down sweat. It advises that while most changes are harmless, persistent or unexplained shifts in odour may warrant medical evaluation.
Why it matters
Understanding the triggers for body odour helps individuals distinguish between normal physiological responses and potential underlying health issues.
Body odour is a normal part of life. Contrary to popular belief, sweat in itself does not usually smell. The familiar odour develops when bacteria and fungi that live on the skin break down substances in sweat, particularly secretions from glands in the armpits and groin. In most cases, body odour is harmless and may vary depending on factors such as heat, physical activity, diet and hygiene.
However, a new or persistent change in body odour should not always be dismissed as a hygiene issue, doctors say. In some cases, an unusual odour may be linked to an underlying health condition and may need medical evaluation.
Several everyday factors can alter body odour. Hot weather and physical activity increase sweating, while tight or synthetic clothing can trap moisture. Garlic, onions, spicy foods, alcohol and certain medicines can also affect body odour.
Get smarter about the news
Sign up free for a feed built around what you actually care about, Dive Deeper research on any story, and the full text of every article.
Create free accountAlready have an account? Sign in