The diagnosis and treatment of pain are among the most challenging problems facing clinicians, and complex regional pain syndrome (CRPS) is probably the most frustrating and difficult pain syndrome to manage. The purpose of this book is to provide clinicians with brief information regarding the diagnosis, pathophysiology and treatment of CRPS. I would like to thank my husband Bugra Yilmaz for help to me in writing this book. Moreover, I would like to thank Scholars' Press for publishing this book. I wish this book will contribute to scientific field and clinicians.