Patients with anal discharge of blood clots should pay attention to the following causes: patients may have severe internal hemorrhoids will have blood in the stool, and sometimes they will discharge blood clots. Ulcerative lesions in the rectum or proximal colon may also cause blood clots, such as the common ulcerative colitis, which sometimes causes bloody fluid to be discharged. If there is a tumor in the lower rectum, it will often irritate the anus and cause the discharge of blood clots. Colon diseases may also cause blood clots in the anus, such as ulcerative colitis, dysentery, and colon cancer. Some patients with small intestine diseases that cause small intestine bleeding may also have blood clots, such as small intestine tumors, intestinal tuberculosis, necrotizing enterocolitis, intestinal entrapment, etc. When the phenomenon of bleeding clots occurs, you should go to the hospital in time, and you can perform an electronic colonoscopy to determine the cause of the disease.