Nosebleeds are a common disease in ENT, but this disease can be clinically life threatening and even fatal if not treated aggressively and the patient experiences excessive blood loss. Most patients with nosebleeds have arterial bleeding in the nasal cavity, and the common sites are the Lees’ area, the inferior nasal tract, the olfactory fissure, the middle nasal tract, etc. Patients with nosebleeds, if treated symptomatically in a timely manner, common treatments include nasal caulking, nasal compression can be done with an expanding sponge, air bladder, or water bladder to stop the bleeding, and if compression cannot stop the bleeding, nasal endoscopy can be done to find the bleeding point and perform hemostasis with plasma or electrocoagulation. Most patients can achieve hemostasis through the above treatment. If individual patients cannot be hemostatic, they can do external carotid artery ligation and other treatment methods to stop bleeding. If the patient is anemic and reaches the indication of blood transfusion, blood transfusion should be given as soon as possible to avoid life-threatening hemorrhagic shock.