After drinking alcohol, the black blood in the stool will be normal in a few days, which can be considered to be caused by gastric hemorrhage, and it is necessary to stop the stimulation of alcohol, life care and drug treatment. 1. Stop alcohol stimulation: when drinking alcohol on the gastric mucous membrane damage, resulting in gastric mucous membrane erosion bleeding caused by gastrointestinal bleeding, resulting in black blood in the stool, at this time you need to stop drinking, at the same time to be able to quit drinking. 2. Life care: after drinking alcohol, black blood in the stool will be normal in a few days, but also to do a good job of life care, pay attention to bed rest, less strenuous exercise, you can first fast for a period of time, to promote the recovery of the stomach. 3. medication: after drinking wine stool black with blood, you can stop bleeding through growth inhibitors, and with omeprazole and other inhibitors of gastric acid medicine repair. The use of medication should be guided by a doctor. It is recommended that after drinking alcohol black blood in the stool after a few days on the normal symptoms need to pay attention to, should go to the regular hospital gastroenterology department for a detailed examination.