Most common site of volvulus is:March 2010 September 2010

Ans. C: Sigmoid colonVolvulus refers to torsion of a segment of the alimentary tract, which often leads to bowel obstruction. The most common sites of volvulus am the sigmoid colon and cecum.In sigmoid volvulus, rotation nearly occurs in the anticlockwise direction.Volvulus of other poions of the alimentary tract, such as the stomach, gallbladder, small bowel, splenic flexure, and transverse colon, are rarePredisposing factors includes a high residue diet and constipation.