There are many kinds of diseases that cause nosebleeds, including dry rhinitis, atrophic rhinitis, and hypertrophic rhinitis, where patients may often blow their noses hard or bleed due to dryness and rupture of the nasal mucosa. There are also diseases of the patient’s systemic system, such as high blood pressure, which may lead to blood vessel rupture, so the bleeding is usually large, so blood pressure must be actively controlled. There are also blood disorders such as thrombocytopenia, leukemia, and some complications of diabetes, so patients may also have nosebleeds, and patients with liver and kidney failure may not have good coagulation, so they may also have nosebleeds. In terms of treatment, we must actively stop the bleeding. If the bleeding is particularly heavy, it is best to go to the hospital for a detailed examination to clarify the patient’s specific condition and avoid delaying treatment.