My syster has blod with loose motin from 15 days it is not stoping
reclothe most common causes of visible blood in the stools are diverticulitis and hemorrhoids. Other conditions and situations that can cause blood in the stools include colon cancer non-cancerous growths, such as polyps intestinal infections (bacterial enterocolitis) that can be caused by foodborne pathogens, such as salmonella and E. coli inflammatory bowel disease (Crohn's disease, ulcerative colitis).I would advise you to get a sigmoidoscopy done.I hope I have answered your query. Take care