Pain Causes and Treatments

Common Causes of Knee Pain Osteoarthritis Osteoarthritis involves the breakdown of cartilage that normally provides a cushion between the bones in the knee joint. As this cartilage cushion wears down, the bones begin to rub together, causing pain, swelling, and stiffness. Bony spurs may also form around the joint. Osteoarthritis progresses gradually over years and…