Most common site of bleeding diveicula: (A) Sigmoid colon, (B) Descending colon, (C) Rectum, (D) Ascending colon
Answer is A. Diveicula most commonly affect the sigmoid colon and are confined to sigmoid colon in approximately 50% of patients with diveiculosis. Segment of sigoid colon is having smallest luminal diameter, and so colonic pressure as high as 90mm Hg can be generated. Reference : Sabiston, Textbook of Suregery, 19th Edition, page no = 1310.