This book is a comprehensive and current guide to the diagnosis and treatment of the entire spectrum of anorectal diseases. It focuses mainly on anorectal problems, as anorectal pathology is often more complex and challenging for surgeons than colonic diseases.The book covers anorectal anatomy, physiology, and embryology as a foundation to a detailed description of preoperative, intraoperative, and post-operative patient management. All surgical procedures are shown in step-by-step detail by leading surgeons and gastroenterologists. This book will be relevant to general, colon, and rectal surgeons in training and practice, gastroenterologists, and other practitioners with an interest in anorectal diseases.