Pediatrics is the branch of medicine that focuses on the physical, mental and emotional well-being of infants, children and adolescents. Various sub-fields such as adolescent medicine, pediatric allergy and immunology, pediatric cardiology and pediatric critical care fall under its domain. Rheumatology is a branch of medicine that focuses on the treatment of rheumatic diseases. Rheumatology primarily deals with disorders and diseases related to the musculoskeletal system, soft tissues, autoimmune diseases, vasculitides and heritable connective tissue disorders. Pediatrics rheumatology is a branch of medicine that deals with the medical care of infants, children and adolescents suffering from rheumatic diseases such as rheumatoid arthritis, ankylosing spondylitis, reactive arthritis, psoriatic arthropathy relapsing polychondritis, etc. Most rheumatic diseases are treated with steroids, disease-modifying anti-rheumatic drugs, analgesic, NSAIDs (non-steroid anti-inflammatory drugs), and monoclonal antibodies. In extremely severe cases, rheumatology surgery can also be carried out. This book contains some path-breaking studies in the field of pediatrics rheumatology. It includes some of the vital pieces of work being conducted across the world, on various topics related to this domain. This book is appropriate for students seeking detailed information in this area as well as for experts.