Also called: Degenerative Arthritis
Osteoarthritis (OA) is the most common type of arthritis that occurs when the cartilage between bones breaks down, causing them to rub together. This leads to pain, swelling and stiffness in the joints. Osteoarthritis can occur in any joint, but it most often occurs in the knees, hips and hands. It can also be called degenerative joint disease. The risk for osteoarthritis increases with age or injury.