Colonic polyps usually cause mucus and blood stools. The occurrence of intestinal polyps is closely related to factors such as infection, age, embryonic abnormalities, lifestyle habits and genetics. Patients with intestinal polyps can experience bleeding and consequently blood in the stool, which can be easily confused with haemorrhoids. Bleeding from intestinal polyps is mainly blood and mucus adhering to the stool, often presenting as mucus and blood in the stool.