Nose bleeding is a relatively common clinical condition, and the causes of nose bleeding are very diverse. The main causes can be divided into two categories, one is the local cause of nasal cavity and the other is the systemic cause. The most common cause of nasal bleeding is located at the front of the nasal septum, where the arteriovenous plexus is located, which can easily lead to nasal bleeding when this area is damaged. Common causes of nasal bleeding are trauma to the nose, inflammation of the nasal cavity and sinuses, or benign or malignant tumors of the nasal cavity and sinuses, deviated nasal septum, nasal septal hemangioma, and other diseases. Bleeding due to nasal diseases can be stopped by nasal tamponade and surgical procedures. Systemic diseases such as blood disorders, hypertension and arteriosclerosis can cause nose bleeding, as can liver and spleen disorders, nutritional disorders and vitamin-like deficiencies, and low calcium. If the nose bleeding is caused by systemic diseases, symptomatic treatment is usually required. For example, if nasal bleeding is caused by hypertension, the bleeding is often violent, so in this case, in addition to nasal stuffing to stop the bleeding, it is also necessary to actively control the blood pressure; if the nose bleeding is caused by blood system diseases, it is necessary to actively treat blood-related diseases, and when the blood system problems are solved, the nose bleeding will be significantly relieved; there are also some patients who have abnormal coagulation function caused by liver function damage, thus For this kind of patients, we should actively use drugs to treat the liver function damage. In addition, some acute febrile infectious diseases, such as influenza and infectious hepatitis, may also cause nose bleeding. Some diseases may not normally have any symptoms and are only discovered when the nose bleeds frequently. Therefore, if there is frequent bleeding from the nose, it is better to go to the hospital and ask the doctor for a detailed examination to clarify the cause of the bleeding and then treat the symptoms.