Editing Sigmoid colon (section)

==Clinical significance==
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[[Diverticulosis]] often occurs in the sigmoid colon in association with increased intraluminal pressure and focal weakness in the colonic wall. It is a common cause of [[hematochezia]].

[[Volvulus]] occurs when a portion of the bowel twists around its mesentery, which can lead to obstruction and [[infarction]]. Volvulus in the elderly commonly occurs in the sigmoid colon, whereas in infants and children it is more likely to occur in the midgut. This may correct itself spontaneously or the rotation may continue until the blood supply of the gut is cut off completely.