The bleeding when you drink wine and have a bowel movement is considered to be caused by the following conditions: 1. It may be due to the stimulation of alcohol, which makes the internal hemorrhoids more serious, and generally results in enlargement of the hemorrhoid nucleus, pain and bleeding, and bleeding during or after a bowel movement, with little bleeding and a bright red color. 2. It may be an anal fissure, which is mostly due to poor dietary habits, making the stool appear This is due to the fact that the skin of the anus is torn when the stool is dry and hard, there will be strong tearing pain, a small amount of bleeding, and the color is bright, you need to use Ma Yinglong hemorrhoid cream to apply the treatment in time. 3, may be the bleeding caused by anal polyps. 4, if the color is darker, it may be cancer, it is best to go to the hospital anorectal specialist, do anoscopy to confirm the diagnosis.