<unk>  <unk> , is the most common, chronic rheumatic disease of childhood, affecting approximately one per 1,000 children. Juvenile, in this context, refers to disease onset before 16 years of age, while<unk>  refers to a condition with no defined cause, and arthritis is inflammation within the joint.<unk>  is an autoimmune, noninfective, inflammatory joint disease, the cause of which remains poorly understood. It is characterised by chronic joint inflammation.<unk>  is a subset of childhood arthritis, but unlike other, more transient forms of childhood arthritis,<unk>  persists for at least six weeks, and in some children is a lifelong condition. It differs significantly from forms of arthritis commonly seen in adults (osteoarthritis, rheumatoid arthritis), in terms of cause, disease associations, and prognosis. The prognosis for children with<unk>  has improved dramatically over recent decades, particularly with the introduction of biological therapies and a shift towards more aggressive treatment strategies.<unk>  treatment aims for normal physical and psychosocial functioning, which is an achievable goal for some children with this condition.
Juvenile idiopathic arthritis
Kawasaki disease
Systemic-onset juvenile idiopathic arthritis
Reactive arthritis
Psoriatic arthritis
Rheumatoid arthritis
Relapsing polychondritis
Inflammatory arthritis