Fresh blood from anal defecation may be hemorrhoids or rectal polyps or anal fissures. First, if the hemorrhoids are relatively large, it may be mixed hemorrhoids. There is no pain during bowel movement, just tissue stained blood when wiping with tissue after bowel movement, its bright red. And mixed hemorrhoids blood is intermittent, may also be accompanied by foreign body sensation and swelling, can be relieved by applying hemorrhoid cream. Secondly, if it is anal fissure, its bleeding is small, and there is severe pain and burning sensation during bowel movement, and the pain of anal fissure lasts for a long time. Third, if it is a rectal polyp, the stool is drier and coarser may stimulate the submucosal blood vessels and cause them to rupture and bleed. Fourth, if the hemorrhoids outflow of blood is relatively fresh, its separate from the stool. If mixed in the stool, it may be a rectal malignant tumor.