This book is to provide readers with an overview of in utero Pediatrics, an interdisciplinary medicine focusing on sequential and comprehensive care for fetuses and children who have functional and/or structural disorders originated from in utero. It covers congenital disorders in cardiology, neurosurgery, urology, general surgery, endocrine genetics, and other related topics. Each chapter starts with the basic theory, illustrates clinical practices on certain congenital disorders, and summaries recent research and advances in the field. Written by experts with wealthy experiences, this case-based book will be a valuable reference for pediatricians and perinatologists, as well as those who are interested in this field.