Fox odor, also known as dyshidrosis, is a condition in which the patient’s sweat has a specific foul odor. Sweaty hands and feet, however, are generally not considered to be related to bad breath. The cause of the onset of bad breath is relatively clear, is the bacterial decomposition of sweat and surface dirt, caused by the generalized stinky sweating. In some patients, the cause of the disease is directly related to heredity. Sweaty hands and feet may be caused by physiological factors, such as long-term in a hot and high temperature environment, eating spicy and stimulating food, etc., may cause excessive sweating, is a normal physiological phenomenon. Secondly, sympathetic excitation, restrictive hyperhidrosis, hyperthyroidism, diabetes mellitus and so on may also lead to sweaty hands and feet. Odorant sweating, hand and foot hyperhidrosis, etc., belong to the skin problems, if there is a need for treatment, it is recommended to go to the hospital dermatology department, under the guidance of the doctor for standardized treatment.