Stool routine appears red blood cells 8~10 is not quite normal, the general normal value should be 0, otherwise it may be related to gastrointestinal bleeding and perianal bleeding. 1. Gastrointestinal bleeding: if stool examination reveals blood mixed inside, it may be ulcerative colitis, inflammation of the rectum or colon cancer. Ulcerative colitis leads to diffuse congestion, edema and ulceration of colon mucosa, which will lead to mucus, pus and blood in stool; inflammation of intestines causes bleeding of intestinal mucosal capillaries, which in turn leads to bleeding in stool; colon cancer can lead to bleeding in stool because of the rupture of tumor itself. 2. Perianal bleeding: if the patient has dry stool and blood dripping after stool, it is mostly considered as hemorrhoids or anal fissure. Generally speaking, anal fissure is often accompanied by hemorrhoids, mainly internal hemorrhoids bleeding, as well as blood dripping from the anus. It is recommended to go to the hospital in time to identify the cause of the disease, under the guidance of the doctor to give the corresponding treatment and treatment.