Enthesitis-related JIA usually causes symptoms in the low back, knees, ankles, and hips. Symptoms can start when a child is as young as 1 year old. When the arthritis and enthesitis affect the joints ...

Learn more about how post traumatic arthritis develops, how common it is, symptoms, diagnosis and treatment. Advice to improve your movement, fitness, and overall health from the world's #1 in ...