In reality, more and more people appeared in the case of blood in the stool, a considerable part of the people do not think, or just since the drugstore to buy some hemorrhoid cream, hemorrhoid suppository and so on the use of such medicines, better on the no matter. Clinical work in the anorectal department for many years, and further study of gastrointestinal endoscopy (including colonoscopy, gastroscopy, etc.) found that blood in the stool is not only hemorrhoids so simple. With the development of society and environmental pollution, the incidence of colorectal tumors is becoming younger and younger. During the period of further training, we have seen patients with rectal cancer who are 20 years old. Therefore, in the clinic, blood in stool, even if it is bright red blood, should not be ignored, and rectal tumors will likewise appear in this situation. Rectal palpation and anoscopy can diagnose low rectal tumors to some extent. Even better is a colonoscopy. Don’t ignore your doctor’s well-intentioned reminders, suggestions, and maybe that can save your life once! Take blood in the stool seriously, starting with anorectal medicine! Start with a colonoscopy!