Finding red blood coming out of the anus when you do not have a bowel movement is not necessarily cancer. If the retained fluid is bright red, it is most likely to be bleeding hemorrhoids. If it is red mucus, various types of enteritis, such as acute gastroenteritis, ulcerative colitis, Crohn’s disease, etc., cannot be excluded. However, the occurrence of red blood flowing from the anus when no stool is found must be taken seriously, go to the hospital as soon as possible to improve stool routine, stool culture, rectal finger examination, colonoscopy, etc. to diagnose the cause of bleeding, according to the cause of early standardized treatment is very critical. At the same time, we should pay attention to the choice of food, not to eat spicy, stimulating, raw and cold food, reduce the consumption of meat and food residues, increase the consumption of vegetables and fruits, do not stay up late, pay attention to rest.