Surgery Benign Gastric Disease 3102811b Most common cause of GI bleed is - A Duodenal ulcer B CA stomach C Oesophageal varices D Erosive gastritis High-Yield Explanation Ans. is 'a' i.e., Duodenal ulcer o Peptic ulcer disease is the most common cause of severe UGIB, accounting for upto 50% of cases.