this condition, one bowel loop makes a knot with anadjacent bowel loop, resulting in mechanical obstructionand even gangrene of the bowel. We present a case of ayoung girl with ileo-ileal knotting resulting in a closed-loopobstruction and gangrene of the small bowel loop. This is adifficult condition to diagnose; a high index of suspicion andearly surgical intervention are essential to reduce morbidityand mortality.