Intramural duodenal haematoma is a rare injury of the duodenum. Most reported cases are secondary to blunt trauma to the abdomen. Such injury following endoscopic intervention is even rarer, and there are no definite guidelines for its management. We report a case where endoscopic haemostasis of a bleeding duodenal ulcer resulted in a massive dissecting intramural duodenal haematoma with gastric outlet obstruction and obstructive jaundice.