Children often have nosebleeds may be caused by frequent nose picking, may also be caused by rhinitis, leukemia and other diseases, can be improved through medication, general measures. 1. Frequent nose picking: if the child often exists in the phenomenon of nose picking, may lead to nasal mucous membrane breakage, thus the phenomenon of nosebleed, need to timely use dry cotton ball for nasal compression to stop bleeding, usually need to develop good habits, avoid picking the nose. 2. Rhinitis: due to the expansion of nasal mucosal blood vessels, once it ruptures, it will lead to nosebleeds. Rhinitis patients with nosebleeds, you need to use a dry cotton ball for local compression to stop bleeding, and then you can use saline for nasal rinsing to reduce nasal inflammation. 3. Blood system diseases with abnormal coagulation function: patients often have bleeding tendency, need to consult the doctor in time to clarify the cause of the disease, and actively cooperate with the doctor for treatment. Children with frequent nosebleeds need to be examined in a timely manner in order to identify the cause of the disease and to be treated as soon as possible.