The value of red blood cells in a normal routine stool examination should be zero, which means that there are no red blood cells in a normal person’s routine stool examination. If a routine stool examination reveals red blood cells inside, it indicates bleeding in the intestine or perianal area, and further information is needed about the patient’s stool properties and whether there is bleeding. If the patient’s stool is dry and there is dripping blood after relieving the stool, it is mostly considered to be hemorrhoids or anal fissure, and a finger-anal examination is needed to clarify. If blood is found in the stool, it is likely to be ulcerative colitis, inflammation of the rectum or colon cancer, and further e-colonoscopy is needed to clarify.