Blood spraying during stool is associated with hemorrhoids, anal fissures, rectal polyps, colorectal cancer and other diseases. Bleeding or jet-like bleeding during stool, blood on hand paper when wiping, and accompanied by bright red color of stool are mainly considered to be caused by bleeding internal hemorrhoids. There are many reasons for the formation of internal hemorrhoids, and the common ones include increased abdominal pressure and recurrent prostate enlargement in middle-aged and elderly men, which can lead to difficulty in passing stool and cause local venous dilatation leading to thrombosis. Increased abdominal pressure and forceful defecation can cause recurrence of hemorrhoids and the appearance of blood spraying during stool. Prolonged dry stool passing through the anal area can lead to local fissures and the formation of anal fissures, which can lead to blood spurting during defecation. When polyps appear in the rectum, it will lead to the relative narrowing of the intestinal cavity and bleeding when the stool passes through the polyps. In colon cancer patients, as the tumor gradually increases, it will lead to local obstruction, so it will also cause bleeding when defecating.