Drinking nose bleeding causes nasal blood vessel wall rupture, patients may have high blood pressure, arteriosclerosis or nasal disease, after drinking alcohol blood vessel expansion, triggering capillary rupture. 1. Rupture of nasal blood vessel wall: after drinking, alcohol will often stimulate the local vasodilatation of nasal blood vessels, resulting in accelerated blood flow, which leads to rupture and bleeding of nasal blood vessel wall, especially when the patient blows or rubs the nose with force, the possibility of bleeding will be greater. 2. Past medical history: some patients suffer from high blood pressure, arteriosclerosis and other related medical history, after drinking alcohol will make the blood pressure rise, the rising blood pressure will also increase the blood vessel rupture and bleeding. 3. Nasal diseases: some patients may have hemangiomas or bleeding polyps in the nasal cavity, etc. After drinking alcohol, the local blood flow increases, the speed of blood flow is accelerated, and the blood vessel dilation can also lead to nose bleeding. If the patient’s nose bleeds after drinking, it is recommended that the patient should go to the hospital as soon as possible to check, improve the nasal endoscopy, to exclude the possibility of new nasal organisms, if the arterial bleeding, the doctor can do local filling, or electrocoagulation hemostasis treatment.