The common site of nasal bleeding varies somewhat depending on age. Easy to bleed; 2, adults: the lower part of the nasal septum area, rich in blood vessels, if the adult nose by the impact of external forces, rhinitis or nasal mucosa dry, erosion, may induce bleeding in this area; 3, the elderly: common in the posterior part of the nasal septum to the deep nasal cavity location, the elderly this location is very rich venous plexus, easy to cause nasal bleeding. Especially when the elderly suffer from hypertension and arteriosclerosis, the brittleness of blood vessels is poorer and blood pressure is poorly controlled, which can easily cause vascular bleeding. Patients occasionally need to be alert when there is blood in the snot or a small amount of bleeding, and further detailed examination is needed if necessary, and some patients may have tumors in the nasal cavity, sinuses and nasopharynx. If the bleeding is slightly excessive, use your fingers to pinch the bilateral nasal flanks tightly or press the bleeding nasal flanks toward the nasal septum for 10-15 minutes while applying cold compresses to the forehead and the back of the neck. When the bleeding is large, do not tilt your head back to avoid blood entering the stomach causing nausea and vomiting, or blood accidentally entering the trachea easily triggering choking or even suffocation.