This secretion is also odourless to begin with but, unfortunately, the bacteria that live on your skin just can't get enough of the stuff. It is contact with these bacteria that produces the familiar BO aroma. Unfortunately, how much apocrine sweat you produce is largely down to genetics, with the addition of some environmental factors such as weight. Regular washing should be enough to keep it under control for most people, but areas with more hair or more, er,
folds, are likely to exacerbate it as the hair traps more dirt, oil and dead skin.