Children’s frequent sweating may be caused by fast metabolism, tuberculosis, calcium deficiency and other reasons. 1. Fast metabolism: children’s rapid growth and development, metabolism is also fast, the process of metabolism will produce a lot of water, through the skin sweating evaporation, there will be the phenomenon of children often sweating. 2. Tuberculosis: Tuberculosis is mainly caused by the infection of tuberculosis bacteria, children with poor body resistance, the symptoms of frequent sweating will occur. 3. Calcium deficiency: Calcium deficiency in children can easily cause nerve disorders, which can lead to the phenomenon of frequent sweating, especially at night when the amount of sweating is higher during sleep. There are many reasons for children’s frequent sweating, and if the symptoms persist, parents are advised to take their children to regular hospitals in time to clarify the cause of the disease and treat them under the guidance of the doctor.