A large number of nosebleeds first need to use a single finger to press the nasal area, about 5-10 minutes to stop the bleeding, and at the same time need to go to the hospital to check the electronic rhinoscopy, in order to identify the cause of bleeding and the site. This bleeding site is usually in the lower anterior part of the nasal septum, called the arterial plexus bleeding in the Littoral area, which is the intersection of the nasal septal arteries and blood vessels. Due to dryness, prolonged nostril digging or tumors, it will cause the blood vessels to rupture and cause bleeding, and the bleeding volume is relatively large, such as fountain-like. After the bleeding site is clearly identified, electrocoagulation with microwave or laser is needed to stop the bleeding, and also filling and compression with expanding sponge or Vaseline gauze can be used to stop the bleeding. If neither of these methods can stop the bleeding, external carotid artery ligation can also be used to stop the bleeding. Routine blood tests and coagulation tests are also needed to rule out systemic related diseases such as leukemia, hemophilia, and vitamin K deficiency as the cause of nosebleeds.