Drinking alcohol can cause gastric bleeding, and the possible causes include cardia mucosal tear, acute erosive hemorrhagic gastritis, rupture and bleeding of esophagogastric fundal varices in liver cirrhosis. 1. Tear of cardia mucosa: a large amount of alcohol is often associated with vomiting, and severe and frequent nausea and vomiting cause a sudden rise in the pressure in the esophagus, resulting in a longitudinal tear of the mucosa of the lower end of the esophagus and cardia, which can cause a large amount of hemorrhage. 2. Acute erosive hemorrhagic gastritis: drinking a lot of alcohol can cause gastric mucosal lesions, alcohol directly destroys the gastric mucosal barrier, gastric acid in the stomach can be diffused into the gastric mucosa, which can lead to gastric mucosal erosion and bleeding, and acute erosive hemorrhagic gastritis occurs. 3. Cirrhosis esophagogastric varices rupture bleeding:Long-term heavy drinking can lead to alcoholic hepatitis, and eventually develop into cirrhosis, complications esophagogastric varices rupture bleeding, causing gastric hemorrhage. Drinking alcohol may cause gastric hemorrhage, people should limit alcohol and stop drinking. Patients with stomach bleeding should go to the hospital in time, under the guidance of the doctor’s treatment.