Proctosigmoiditis is a form of left-sided ulcerative colitis that affects the rectum and sigmoid colon rather than a larger area of the colon. It usually causes diarrhea. Proctosigmoiditis affects ...

Uncomplicated diverticulosis was not associated with increased abdominal pain or altered bowel habits. "Our results do not support that uncomplicated diverticulosis causes symptoms in individuals ...