The aim of this book is to be a guide to general practitioners and paediatricians under the light of the current concepts. It will not only help the reader to understand the pathogenesis of common childhood rheumatic diseases, but also provide the general practitioners with a current algorithm that will help them to decide what to do and when to seek reference. It is the child with arthritis, recurrent fever, or a non-specific rash that is a diagnostic dilemma, and that is waiting for someone to solve the problem. For this reason, this book includes real case histories with their photos, radiographic findings, and further investigations, where necessary.