Extra wet sweaty hands and feet in children can be caused by normal metabolism, high temperatures or overdressing, and vitamin D and calcium deficiencies. 1. Normal metabolism: children and adults are different, is in the rapid growth and development of the period, the metabolism is more vigorous, often the phenomenon of sweaty hands and feet. 2. Excessive temperature or overdressing: It may be caused by high ambient temperature, such as in a heated room, or parents dressing their children too thickly, which can lead to excessive sweating. 3. Vitamin D and calcium deficiency: when vitamin D and calcium are deficient, it is easy to lead to increased neural excitability, especially when rickets is triggered, the symptoms are more obvious, which may lead to sweaty hands and feet, irritability and other symptoms. Children’s hands and feet sweating especially wet, if accompanied by other symptoms, must promptly go to the hospital, identify the cause of targeted treatment or treatment.