Children’s nosebleed is not much more frequent, may be frequent nose picking, chronic rhinitis, blood disease and other reasons. 1. Frequent nose picking: frequent nose picking by children may lead to nasal mucous membrane damage and frequent nosebleeds, due to the damage is generally not large and the body quickly clotting, so the bleeding is not much. In addition, long-term in the dry lack of ventilation in the environment caused by nasal dryness will also nosebleeds. 2. Chronic rhinitis: chronic inflammatory reaction caused by long-term repeated infection of nasal mucosa, nasal dryness, increased vascular permeability, so the above phenomenon. 3. Blood diseases: leukemia, aplastic anemia, myelodysplastic syndrome and other blood system diseases lead to insufficient platelet production, so the above phenomenon will occur. Children with frequent nosebleeds may be related to a variety of factors, and it is recommended to consult a doctor for a clear diagnosis.