This book provides a concise, focused and clinically relevant summary of complications and emergencies related to bariatric surgery. The first section of the text addresses general complications related to anesthesia and the stress of surgery, including issues such as deep vein thrombosis, pulmonary embolism, hemorrhage, pneumonia and cardiac complications. Additionally, this section addresses the workup of the bariatric patient with abdominal pain. The second portion of the text focuses on gastric bypass and sleeve-specific complications, including staple line and anastomotic leaks, internal hernia, marginal ulceration, GI obstruction, hernia formation and gallstone disease. The third portion of the book examines metabolic, nutritional and psychological complications after bariatric surgery. The text also covers management of weight loss failure.