Nosebleed may be caused by environmental factors, nasal inflammation, nasal septum deviation, nasal hemangioma, etc. According to the causes, general treatment, medication and surgery should be given. 1. Environmental factors: dry climate and low water intake may cause dryness of nasal mucosa and rupture of nasal mucosal blood vessels, which can be gradually improved by using humidifier to maintain proper humidity, drinking more water and not picking the nose. 2. Nasal inflammation: such as sinusitis, rhinitis, etc. caused by capillary damage rupture bleeding, can be given saline rinse nasal cavity, the application of budesonide nasal spray nasal spray; if it is a bacterial infection, can be given antibiotics, such as cefaclor, amoxicillin, etc. to fight infection, relieve bleeding. 3. Deviated nasal septum: Nasal bleeding caused by abnormal structure of nasal septum can be considered for surgical treatment, such as septoplasty, nasal septum correction. 4. Nasal hemangioma: Hemangioma is rich in blood vessels, causing blood vessel rupture and bleeding, and can be considered to be removed by nasal endoscopic surgery. It is recommended to consult a doctor to find out the cause of nosebleed and follow the doctor’s prescription.