If an adult male has frequent nosebleeds, the following causes are mainly considered: First, it may be due to seasonal factors, dry nasal mucosa, or usually patients often smoke a lot, which has a certain stimulating effect on the patient’s nasal mucosa and can easily lead to rupture and bleeding of the nasal mucosa. Second, patients are likely to have hepatitis B, hepatitis C or cirrhosis of the liver, patients are likely to have abnormal liver function, especially likely to lead to nosebleeds, sometimes also related to patients with a lot of alcohol. Third, adult male patients are likely to have neoplastic formation inside the nasal cavity, such as necrotic nasal polyps or malignant tumors in the nasopharynx, which also tend to lead to frequent nosebleeds in the nose. Regardless of which of the above causes, it is best to go to the hospital for further examination to clarify the cause and then treat the symptoms.