High blood pressure nosebleeds may be due to dry rhinitis, poor blood pressure control, drug effects and other factors. 1. Dry rhinitis: patients with dry rhinitis, nasal mucosa lose moisture moisturizing, become too dry, when the blood pressure fluctuation is large, the impact on the blood vessels increased, will cause nasal blood vessel rupture, thus nosebleed. 2. Poor control of blood pressure: hypertension patients if the blood pressure is not controlled, long-term high blood pressure in the state, high pressure on the blood vessel wall, can be triggered by a slight external force rupture, resulting in high blood pressure nosebleeds. 3. Drugs: hypertension patients with increased blood viscosity, in order to prevent the formation of blood clots, often under the advice of the doctor to use aspirin and other antiplatelet drugs, such drugs on the coagulation function has a certain inhibitory effect, which can induce patients with high blood pressure nosebleeds. If the patient has the symptoms of high blood pressure nosebleed, should consult a doctor in time, under the doctor’s diagnosis and treatment to determine the specific cause of the disease, and follow the doctor’s instructions, and actively cooperate with the treatment.