OsteoArthritis (OA) has long been known as the “wear-and-tear” arthritis that catches up with people in their old age. It is true that most people who suffer from OA are age 65 or above. OsteoArthritis is caused when the cartilage in the weight bearing joints of our bodies begins to break down and deteriorate. This puts more pressure on the bones in the joints causing pain and stiffness. Young People with OsteoArthritis are being seen more every year.