<prompt> Most common cause of upper GI bleed isDuodenal ulcerCA stomachOesophageal varicesErosive gastritis  <response>: Most common cause of upper GI bleed is duodenal ulcer-33. Other causes are gastric ulcer-21, erosions-26, mallery weis tears-4, oesophageal varices-4, tumours-0.5, vascular lesions eg. Dieulafoys disease-0.5 and others-5. Reference : page 1063 Bailey and Loves sho practice of surgery 25th edition 