Upper GI Bleeding.- Stabilization of Patients Presenting with Upper Gastrointestinal Bleeding.- Urgent Workup for Upper Gastrointestinal Bleeding.- Management of Esophageal Variceal Bleeding.- Management of Dieulafoy’s Lesions.- Management of Bleeding Peptic Ulcer Disease.- Management of Unusual Sources of Upper GI Bleeding.- Mallory–Weiss Syndrome.- Management of Bleeding Small Bowel Tumors.- Management of Bleeding from the Bile Duct.- Management of Bleeding from the Pancreas.- Lower GI Bleeding.- Urgent Workup of Lower GI Bleeding.- Bleeding Hemorrhoids.- Management of Bleeding Colitis and Colonic Diverticular Disease.- Colonic Arteriovenous Malformations.- Bleeding Colonic Tumors.- GI Bleeding from an Unknown Source.- Evaluation of the Guaiac Positive Patient.- Obscure GI Bleeding: Capsule and Double-Balloon Techniques.- Provocative Angiography.- The Unstable Patient with Obscure Gastrointestinal Bleeding: Surgical and Non-surgical Management.