Frequent sweating of the palms and feet may be caused by functional sweating, autonomic disorders, hyperthyroidism and other reasons. 1. Functional sweating: Functional sweating is the human body in excessive tension, fear of the situation will cause sympathetic nerve excitation, may induce sweating palms and feet. Usually love to eat spicy, stimulating food, speed up the body’s metabolism induced sweating palms and feet. 2. Autonomic disorder: the body due to autonomic hyperfunction, will lead to increased local sweating, manifested in sweaty palms and feet often. 3. Hyperthyroidism: patients with hyperthyroidism, due to the excessive release of thyroid hormone synthesis, resulting in hypermetabolism, the metabolic rate of substances is relatively fast, the palms and feet will often have sweaty performance. Sweaty palms and feet often cause more, serious and timely medical treatment.