Patients with anorectal malformations (ARMs), Hirschsprung disease (HD), fecal incontinence from a variety of conditions, colonic motility disorders, and a myriad of other conditions comprise the field of pediatric colorectal and pelvic reconstruction. Such patients require care throughout their lives from specialists across numerous fields, which may include colorectal surgery, urology, gynecology, and GI motility, as well as specialized nursing, orthopedics, neurosurgery, anesthesia, pathology, radiology, psychology, social work, and nutrition. Sometimes the field can seem chaotic and unpredictable. Reconstruction requires creativity and at times it feels that artwork is being created during the actual operation with no pre-plan in mind. Marc Levitt and his colleagues have worked very hard to counter that feeling, to be fully prepared, and to develop protocols, techniques, and processes that can be adopted by other clinicians, so that optimal results for patients can be achieved. This book reflects both this experience and this approach.