Nose bleeding after drinking is related to high blood pressure, nasal hemangioma and alcohol stimulation. 1. High blood pressure: Alcohol can lead to accelerated blood circulation, resulting in increased blood pressure. Elevated blood pressure can cause the blood vessels in the nasal cavity to rupture, usually bleeding a lot. 2. Nasal hemangioma: when there is a hemangioma in the nasal cavity, drinking alcohol can induce the rupture of the hemangioma and cause nosebleed; nasopharyngeal hemangioma can also be caused by the rupture of blood vessels leading to nosebleed. 3. Alcohol stimulation: Drinking alcohol will cause some stimulation of blood vessels, resulting in local vasodilatation, which can also lead to the appearance of nasal bleeding. Bleeding from the nose after drinking alcohol may also be caused by other reasons, it is recommended to improve the relevant examination, after a clear diagnosis under the guidance of the doctor standardized treatment.