Children’s noses always bleed, may be due to the dry environment, nasal septum deviation and respiratory tract infections and other reasons. 1. Dry environment: As the nasal mucosa of children is relatively tender and fragile and the capillaries are relatively rich, when the surrounding environment is too dry, the capillaries may rupture, resulting in symptoms of nose bleeding. 2. Deviated septum: If a child has a deviated septum, the deviated side becomes dry and fragile due to excessive exposure to air, which often causes spontaneous nosebleeds. 3. Respiratory tract infection: If the child suffers from respiratory tract infection, viruses and bacteria may invade the nasal mucosa, resulting in erosion, congestion and edema of the nasal mucosa. Therefore, if your child suffers from severe or persistent nosebleeds, it is recommended to go to the hospital for an examination to identify the cause of the problem and treat it as soon as possible.