This book presents a comprehensive overview of all available surgical techniques for complex perineal reconstruction. Divided into 17 chapters and employing a multi-disciplinary approach, it provides valuable insights into the re- sectional aspects of this field, considerations in multiple organ removal (bladder, anus/colon, stomach), and the inclusion of radiology in preoperative planning for complex reconstructions, as well as anaesthetic aspects in perioperative patient care. Written by leading experts in the field, the respective chapters offer step-by-step descriptions of all available reconstructive options and detailed information on perineal and pelvic defects, together with valuable insights into surgical execution, indications, and common complications and pitfalls encountered when dealing with this challenging defect.