Here's some news that might surprise you: Body odor does not just come from the underarms; it can originate anywhere there are sebaceous (oil) and sweat glands—which includes the scalp, genitals, feet, and even nipples! Sweat itself doesn't actually stink; the unpleasant smell is believed to develop when bacteria that are naturally found on the skin start to break down sweat, explains Joshua Zeichner, MD, director of cosmetic and clinical research in the department of dermatology at Mount Sinai Hospital in New York.
While a daily shower, change of clothes, and swipe of deodorant do the trick for most people, those who perspire excessively (hyperhidrosis), have certain illnesses (like diabetes), or prefer to steer clear of aluminum-based antiperspirants may have a harder time getting rid of the stench. If that sounds like you, don't despair: You're not doomed to walk around feeling like Pig-Pen. Read on for some smart fixes.