Basic information about osteoarthritis, arthritis f common form of arthritis that affects adults. Centers for Disease Control and Prevention.
How can someone with OA improve their quality of life? It most frequently occurs in the hands, hips, and knees. With OA, the cartilage and bones within a joint begin to break down. These changes usually develop slowly and get worse over time. OA can cause pain, stiffness, and swelling, and can result in disability. OA affects over 30 million US adults. OA is caused by damage or breakdown of joint cartilage between bones.