In daily life, most people will encounter the symptom of blood in the stool, the following analysis of the possible causes of bleeding stool with you what. 1, acute dysentery can appear blood in the stool and accompanied by fever, abdominal pain, diarrhea. 2, hemorrhoids can appear the symptoms of blood in the stool, usually in the process of defecation or after the stool appear dripping or jet bleeding, bleeding amount is not fixed, but also not regular. If the bleeding is frequent, it may cause anemia, and the symptoms are often aggravated by consuming spicy and irritating food. 3.Symptoms of anal fissure include blood in the stool and severe pain, usually the bleeding is relatively small, and bleeding stops soon after the stool. Constipation can easily lead to anal fissure, and you need to eat more fruits and vegetables in general. 4, intestinal polyps will appear blood on the surface of the stool, the blood is bright red, if accompanied by infection, there will be mucus blood stool, anal swelling, constipation symptoms, patients need to pay attention to dietary hygiene, to light and easy to digest food. 5, intestinal tumors may also cause bleeding in the stool, the blood is thick, dark, mostly mixed with stool, and often accompanied by abdominal pain and other symptoms. 6, ulcerative colitis, can appear abdominal pain, diarrhea, with blood in the stool, blood dark red or bright red and mixed with mucus. If the above performance, you need to go to the hospital in time to clarify the cause and treatment.