Frequent nosebleeds in children may be caused by a variety of causes, such as direct damage to nasal blood vessels, blood vessel abnormalities, blood system diseases, etc., which need to be clarified and treated symptomatically. 1. Direct damage to nasal blood vessels: it may be caused by capillary rupture due to dryness of the nasal cavity or frequent digging of the nostrils, and it is necessary to stop the bleeding by compression, keep the nasal cavity moist and maintain a certain degree of humidity in the room. 2. Vascular abnormality: vitamin deficiency can lead to increase the brittleness of blood vessel wall, can be moderate supplementation of vitamin C. If the symptoms of aggravated nasal congestion, it is recommended to carry out the examination of nasal tumor. 3. Blood system diseases: if the patient has weakness and pallor, the coagulation function may be abnormal, it is recommended to go to the hospital for routine blood tests, coagulation routine, bone marrow aspiration and other tests and symptomatic treatment. If the patient’s situation is not good, you need to consult a doctor in a timely manner, under the guidance of the physician, according to the cause of the targeted treatment, do not blindly use their own medication.