The most common cause of nose bleeding in middle-aged and elderly people is the excessive drying of the mucous membrane in the nasal cavity, or the occurrence of a certain degree of nasal cavity, sinusitis infectious and allergic diseases, which can easily lead to localized mucous membrane of the nasal cavity erosion, ulceration, as well as bleeding conditions. At the same time, some patients may also have too much smoking, drinking, eating too much spicy and stimulating food, excessive fatigue, staying up late and other possible causative or influencing factors. Some patients may have high blood pressure, diabetes, liver and kidney diseases, blood system diseases, some systemic pathogenic factors, which may cause bleeding symptoms, may also be combined with the presence of nasal septum deviation, or the presence of hemangiomas and other bleeding-prone growths in the nasal cavity, which require attention to further improve the examination.