Sweaty hands and feet may be physiologic, or it may be caused by hyperthyroidism, tuberculosis and other causes. 1. Physiological: For example, when the temperature is too high in summer, when you wear too much clothing or too thick bedding, the body’s metabolism speeds up and heat production increases. The body needs to dissipate heat, so while the whole body sweats, the hands and feet also sweat to take away the heat inside the body. 2. Hyperthyroidism: Hyperthyroidism is a high metabolic disease, due to excessive synthesis and release of hormones from the thyroid gland, sweating of the hands and feet will occur, and may also be accompanied by a fear of heat, irritability, and emaciation and other phenomena. 3. Tuberculosis: tuberculosis is a chronic infectious disease caused by mycobacterium tuberculosis infection, clinically there will be sweaty hands and feet phenomenon, may be accompanied by afternoon low fever, fatigue, cough, emaciation and other symptoms. When the patient has the symptoms of sweaty hands and feet, and continues without relief, should go to the hospital in time to identify the cause of the disease, choose targeted treatment.