Sweaty hands may be caused by high ambient temperature, emotional stress, hyperhidrosis, hyperthyroidism and other factors. 1. High ambient temperature: Higher ambient temperatures can lead to an increase in the discharge of bodily fluids, an increase in perspiration, and the appearance of hand symptoms. 2. Emotional tension: Emotional tension can lead to increased sympathetic excitability, increased heart rate, increased discharge of body fluids, and symptoms of sweaty hands. 3. Hyperhidrosis: patients with this disease will have symptoms of excessive sweating, and the most common areas of limited hyperhidrosis are palm and plantar, armpit, groin and perineum. 4. Hyperthyroidism: this disease will lead to an increase in the basal metabolic rate of the patient, the secretion of strong, there will be sweaty hands symptoms. There are many factors that lead to sweaty hands, and it is recommended that patients go to the hospital in time to find out the cause of the disease.