Drinking alcohol the next day blood, mostly due to gastric ulcer, erosive gastritis, hemorrhoids, anal fissure and other reasons. 1. gastric ulcer: gastric mucosa ulcer surface, alcohol stimulation of the ulcer surface after drinking lead to bleeding, so the second day of blood, can be accompanied by epigastric pain, nausea, acid reflux, heartburn and other symptoms. 2. Epicritic gastritis: the gastric mucosa is eroded, and after drinking alcohol, the gastric mucosa is stimulated and causes bleeding, usually accompanied by acid reflux, nausea, stomach pain, and other symptoms. 3. Hemorrhoids: the essence of hemorrhoids is the expansion of the veins to form blood vessels, due to a large number of alcohol will stimulate the hemorrhoidal vein wall varicose, the second day of defecation capillary rupture leading to bleeding. 4. anal fissure: drinking a lot of alcohol can lead to constipation, defecation and excessive force caused by the anal edge of the skin is propped up crack, so the second day of blood. Drinking alcohol on the 2nd day of blood, there may be other reasons, it is recommended to consult a doctor in a timely manner, under the guidance of the doctor for targeted treatment. Do not take medication on your own to avoid delaying your condition.