Sweating in 6-7 years old children may be related to physiological factors, calcium deficiency, tuberculosis and other factors, which are analyzed as follows: 1. Physiological factors: children’s metabolism is strong, sweat glands are mostly distributed in the head and neck, so sweating is mostly concentrated in the head and neck, and it is easy for them to sweat during sleep, especially within one hour of going to sleep, which is a normal physiological phenomenon. 2. Calcium deficiency: lack of vitamin D in children’s body, resulting in a decrease in blood calcium, sympathetic excitability increases, sweat gland secretion also increases, manifested as sleep is not solid, night terrors, sweating and other phenomena. 3. Tuberculosis: After infection with tuberculosis bacillus, it manifests as sweating while sleeping, accompanied by low fever, loss of appetite, no or lowered body weight and other manifestations. Caused by 6-7 year old children sleep sweating may have other reasons, it is recommended to go to the hospital in a timely manner for relevant examinations, clear cause of the symptoms of the disease after active symptomatic treatment.