The surgery which is performed immediately, in order to save life, limb or functional capacity is known as emergency surgery. It is done in the cases where immediate surgical intervention is the only possible way to solve the problem successfully. Some of the common cases in which the doctor often performs an emergency surgery include gastrointestinal perforation, cardiac tamponade, pneumothorax, acute appendicitis, peritonitis, bowel obstruction, urinary retention, limb ischemia, etc. The emergency department is the medical treatment facility that is concerned with the acute care of patients with a broad spectrum of life-threatening illnesses and injuries. The chances of survival for a patient are greatly improved if definitive treatment or surgery is provided as soon as possible. This book elucidates new techniques and their applications in a multidisciplinary manner. The topics included herein on emergency surgery are of utmost significance and bound to provide incredible insights to readers. This book includes contributions of experts and doctors which will provide innovative insights into this field.