What's with the diarrhea and bleeding?

If diarrhea is serious, it will be accompanied by bleeding, more common in intestinal inflammation, intestinal inflammation will cause capillary rupture of intestinal mucosa and bleeding. The causes of enteritis are more, such as virus, bacterial infection, intestinal tuberculosis, intussusception, intestinal tumors, etc., will cause diarrhea, and there is blood. If stool has blood, and contains mucus, may be ulcerative colitis, serious hemorrhagic necrotizing colitis and colon tumors, so diarrhea.