Three cases of duodenal obstruction have been reported with a view of focus attention in differentiating the condition from pyloric stenosis. Since the signs and symptoms of pyloric obstruction and duodenal obstruction are very similar and the only means of differentiating is a critical study of the X-Rays, attention has only been drawn to the X-Ray findings and no details of clinical history of the patients are given to economise paper space. The ideal treatment suggested, is duodenojejunostomy.