Physiological hyperhidrosis: This refers to sweating during sleep caused by a well-developed, healthy child without any disease. Parents are often used to deciding the best environmental temperature for their children by their own subjective feelings, and like to cover their babies with more covers and cover them tightly. Children because the neurological development of the brain is not yet perfect, and in the period of growth and development, the metabolism of the body is very vigorous, coupled with the stimulation of overheating, only through sweating, in order to evaporate the body’s heat to regulate the normal body temperature. In addition, children who drink milk, cream of wheat or eat chocolate before going to sleep can also cause sweating. In addition, high room temperature or excessive warmth are also causes of sweating during sleep, which are all physiological sweating. Physiological hyperhidrosis is common in children between the ages of 3 and 7 years old, and often occurs within half an hour after the child falls asleep, and usually stops slowly within 2 hours after sleep, with sweating mainly on the forehead. Physiological sweating can disappear gradually as the child grows older. Pathological sweating: If the child is usually weak and sweats profusely at night when he or she goes to sleep, or even sweats all night long, wet clothes through the pillow, and accompanied by irritability, crying, losing weight and other symptoms, then it is pathological excessive sweating. The most common cause of pathological hyperhidrosis in children is rickets, which manifests itself in the first half of the night after sleep, when the child’s head sweats significantly. Because the occipital area is stimulated by sweat, infants often shake their heads and pillow friction during sleep, resulting in thinning and loss of hair in the occipital area, forming a typical occipital ring-shaped hair loss, medically known as “occipital baldness”, is an early manifestation of infant rickets, as long as the timely supplementation of vitamin D and calcium, rickets can be controlled, sweating will also stop since The sweating will stop on its own. If a child sweats not only in the first half of the night, but also in the second half of the night and before dawn, this is a sign of a disease, most often tuberculosis. Tuberculosis also has other manifestations, such as low fever, fatigue, loss of appetite, and flushed cheeks. Children with tuberculosis are prone to sweating during daytime activities called false sweating, and sweating at night is called night sweating. If a child is suspected of having tuberculosis, a lung x-ray or tuberculin test should be done for timely diagnosis and treatment. If the child often has excessive sweating before dawn, accompanied by pale face and a weak and fast pulse, it may be a case of hypoglycemia. In this case, the child can drink some sugar water or eat some pastries, and the sweating symptoms will disappear. Weak children often sweat in patches on the head, chest and back during daytime activities or at night after sleeping. This is often caused by malnutrition due to improper feeding or poor digestion and absorption. Care should be taken to adjust feeding methods, promote the appetite of the child, and increase the intake of protein, fat and sugar. If necessary, pediatric tuina can be used to regulate spleen and stomach disharmony. In addition, children suffering from anemia, rheumatism, rheumatoid and other diseases may also show symptoms of excessive night sweating. Therefore, parents should bring their children to the doctor promptly when excessive night sweating occurs in children, and treat the abnormalities promptly.