The buildup of sweat led to enhanced bacterial growth on skin or similarly fungal infection in athlete’s foot is often described as bad smelling foot or bromodosis. People get smelly feet when the perspiration has no where to go means wearing closed shoes for whole day (if they are wet from inside, further aggravating the situation). However, the prime cause is not sweat while microbial growth that eat’s sweat and product isovaleric acid leads to bad smell.