Does the person sitting next to you have bromodosis? Smelly feet is a very common medical condition from buildup of sweat resulting in bacteria growth on the skin. Your feet have more sweat glands than any other part of your body with naturally occurring bacteria to help break down sweat. Bad odor forms when bacteria and sweat are allowed to build up. Some simple tips to prevent bromodosis includes using a scrub brush to wash your feet at least once a day, keeping toenails short and alternating between two pairs of shoes. Look for well-fitting socks made with antimicrobial fibers to keep your feet sweet smelling all day.