Pediatric rheumatic diseases are a spectrum of conditions affecting children's joints, muscles, and connective tissues. These conditions, often autoimmune in nature, can result in pain, swelling, stiffness, and decreased mobility, significantly affecting a child's quality of life. Juvenile idiopathic arthritis (JIA) is the most common form of rheumatic disease in children, characterized by chronic joint inflammation. Other conditions include juvenile lupus, juvenile dermatomyositis, and juvenile scleroderma. Early diagnosis and intervention are crucial to managing these diseases and preventing long-term complications such as joint damage and disability. Treatment strategies typically involve a multidisciplinary approach, including medications to control inflammation, physical therapy to maintain mobility, and psychosocial support for both the child and their family. This book contains some path-breaking studies in the field of pediatric rheumatic diseases. It is a compilation of chapters that discuss the most vital concepts in the field. This book is meant for students who are looking for an elaborate reference text on this subject.