Five-year-old children with nosebleeds clinically mainly have the following conditions: First, children of this age are prone to rhinitis, sinusitis, allergic rhinitis and other nasal diseases, repeatedly have the stimulation of nasal secretions, easily induced nasal mucosa congestion, coupled with the child often involuntarily picking the nose, touching the nose, prone to arterial bleeding in the nasal septum lee area, the amount of bleeding is generally not too much, there will not be very serious consequences Most of the bleeding should gradually stop by pinching the child’s nose and tilting the child’s head forward in a low position for about 3-5 minutes. Secondly, children like to be picky eaters, eat snacks, eat less vegetables and fruits, drink less water, resulting in a possible lack of vitamins, resulting in the capillary wall of the nasal cavity is more brittle, the coagulation function of the blood vessels is not very good, easy to induce the rupture of local blood vessels, thus bleeding. Third, some patients have deviated nasal septum, deviated bone local protrusion, bleeding, protruding place mucosa is thin, repeated airflow stimulation, friction, easy to induce the rupture of submucosal blood vessels, bleeding. Fourth, children with blood disorders, such as severe thrombocytopenia, anemia, and coagulation factor deficiency, are also prone to nasal bleeding, mostly bilateral nasal bleeding.