Underarm odor is generally known as fox odor, which is a special odor produced by bacterial decomposition of sweat secreted by sweat glands in the armpit area. The onset before puberty, there is a genetic tendency, generally divided into mild, moderate and severe three types. In mild cases, the symptoms can be improved by applying alum solution topically, bathing regularly and changing underwear, but sometimes they will recur. For moderate and severe patients only take the surgical method to completely cure fox odor. Generally under local anesthesia, small incisions are used for subcutaneous trimming to remove all the sweat glands and hair follicles in the armpit area, so that no sweat is secreted and fox odor can be completely cured.