Hair loss in children aged 7-12 may be a normal physiological phenomenon, generally do not need special treatment, or it may be due to baldness, fungal infections and other disease factors. 1. Normal physiological phenomenon: hair has a growth cycle, after a certain period of time in the growth of hair loss phenomenon, and then grow new hair, always maintain a balanced state, the general daily amount of hair loss within 100, do not have to worry too much, do not need special treatment. 2. Patch baldness: commonly known as “ghost shaving”, is a sudden, limited patchy hair loss, clear boundaries, no scarring, no inflammatory reaction, after diagnosis, you can use topical glucocorticoid creams under the guidance of a doctor, such as budesonide and other medications, and in severe cases, you need to take oral hormones for a short period of time. 3. Fungal infections: Fungal infections may lead to hair loss, need to consult a doctor in time, after clarifying the cause of the symptomatic treatment, common antifungal drugs are itraconazole, terbinafine and so on. 4. Systemic diseases: iron deficiency anemia, malnutrition and other factors may also lead to hair loss, need to identify the cause of the disease, symptomatic treatment under the guidance of the doctor, in the diet should pay attention to balanced nutrition, appropriate more fresh fruits and vegetables. The causes of hair loss in children aged 7 to 12 are many and varied, and it is recommended that patients seek timely medical attention and actively cooperate with the relevant examinations in order to clarify the cause of the symptomatic treatment.