<prompt> Diverticulum most common site is-Sigmoid colonIleumAscending colonTransverse colon  <response>: Ans. is a i.e.? Sigmoid colon Ref: Sabision 18the p. 1365o The sigmoid colon is the segment of large bowel with the highest incidence of diverticula, and is by far the most frequent site for involvement with diverticulitis. 