What Causes Body Odor?
Your body has two types of sweat glands: eccrine glands (which are responsible for regulating the body’s temperature) and apocrine glands (which develop as the body goes through puberty in areas of the body where hair grows).
Many people don’t begin to notice body odor until they hit their teenage years because apocrine glands are primarily responsible for the reactions that cause body odor. Apocrine glands release sweat that is high in protein, which bacteria find easy to break down, resulting in unpleasant odors. This sweat is also thicker, and often has a milky or yellowish color.