Bright red blood in the stool should be alerted to the possible emergence of anorectal diseases, the patient if the blood in the stool is serious should consult a doctor in a timely manner, and according to the doctor’s advice for the corresponding treatment. Blood in the stool is a symptom of many anorectal diseases, and generally bright red blood in the stool is mostly seen in the following types of anorectal diseases. 1. Hemorrhoids: blood in stool is mostly caused by internal or mixed hemorrhoids, and the blood usually appears bright red and is not mixed with stool. 2. Anal fissure: blood in the stool is caused by hard, dry stool, not mixed with feces, some patients will appear after the stool drops of blood. 3. Rectal polyp: It can also cause blood in the stool, usually without discomfort, and will stop after the end of the bowel movement. 4. Prolapsed rectum: Bright red blood will also be seen after the prolapsed rectum breaks down. There are many reasons for blood in the stool, if the bleeding is serious, the patient should go to the hospital in time for examination and treatment.