A sweaty armpit odor, may be the fox odor, may also be the symptoms of sweat odor. 1. Fox odor: if the patient usually do not often exercise, it will also emit a special odor, especially in the armpit area, most of this situation is caused by fox odor, which will lead to yellow phenomenon in the armpit area of clothing after sweating. 2. Sweat odor: if more sweat after exercise, after bacterial decomposition, there will be sweat acid odor, there will also be a sweat odor, but belongs to the normal physiological performance. This situation suggests timely replacement of clothing, diligent bathing, eat less spicy and stimulating food, can also be coated with antiperspirant to relieve the symptoms of sweating odor. If there is an odor in the armpits after sweating, it is recommended to go to the hospital in time for a clear diagnosis, according to the cause of the treatment and conditioning.