1. Neurological factors: Some scholars believe that baldness often develops after anxiety and tension or mental stimulation, and the central nervous system may play an important role. Some children often have a history of sudden fright. School-age children have long study hours and high learning pressure, coupled with poor psychological tolerance, which leads to disorders of phytoconstriction and persistent capillary constriction, resulting in impaired blood circulation in the hair root, and the onset of heart disease due to cellular dysfunction in the seed layer of the hair root. 2. Bad habits: With the gradual increase in the variety of food, the phenomenon of partial and picky eating is very common among children. Childhood baldness is closely related to the imbalance of bone density and trace elements, and its total osteoporosis rate is 57.75%. 38.2% of child baldness patients have blood trace elements of zinc, iron and calcium below the normal range. At the same time, bad habits such as partial eating and picky eating can also lead to the occurrence of baldness. 3.Other factors: about 10% to 20% of people have a family history of baldness; diseases caused by immune system disorders are often accompanied by the occurrence of baldness. Improper local grooming and excessive tension on the scalp can cause poor local blood flow and insufficient supply of nutrients to the hair, which can also cause local hair to fall out easily.