Osteoarthritis (OA) is a degenerative condition of the joints in your body, in which the cartilage that protects the surface of your bone begins to wear down. This condition is very common, and affects between 10-15% of people over the age of 60. The most common joints to experience OA include the knee, hands, and hips. It can cause pain, stiffness and inflammation, and can make it harder to move, walk and do the things you love to do. This degenerative process is irreversibl