If you have a bleeding bowel movement, you should first look at the bleeding situation and see what color the blood is, whether it is bright red or dark red. If the blood is generally bright red, the bleeding is considered to be relatively lower, such as rectal bleeding, anal hemorrhoid bleeding, or anal fissure bleeding. If the blood is relatively dark red, it means that the blood is oxidized, that is, the bleeding site is relatively upper, the whole digestive tract has stomach and duodenum generally bleeding more, small intestine bleeding is relatively rare. If the blood only covers the upper part of the bleeding, if the blood only covers the blood after defecation, the blood is considered to be the lower part of the bleeding, such as general bleeding hemorrhoids, which do not mix with the stool, but generally cover the surface of the stool. There are also the accompanying symptoms, such as whether the stool is soft, whether it is accompanied by something sticky like snot, if it is accompanied by mucus stool, to rule out the possibility of intestinal, such as inflammatory bowel disease, colorectal cancer. If the bleeding is accompanied by obvious pain around the anus, and then accompanied by dry stools, the possibility of anal fissure is relatively high. There are also some patients with colon polyps who also show blood in the stool, but the amount of bleeding in this category is relatively less, and there is another category that is accompanied by mucus and blood in the stool, and this category of patients may be considered inflammatory bowel disease, and this is generally more in the acute outbreak period, otherwise under normal circumstances inflammatory bowel disease, the chances of showing deformation are relatively small. But no matter what the cause of bleeding, it is best to go to a specialist for examination, such as perfecting some anoscopy, or even a rectal realm for a colonoscopy if necessary, which will help in differential diagnosis.