Osteoarthritis is a degenerative change that occurs mostly after the age of 50, more in women than in men, and involves more weight-bearing joints, but can also appear in the shoulder, elbow, finger and other joints. Osteoarthritis arthralgia has the following characteristics: it occurs mostly in weight-bearing joints such as knees and hips; the arthralgia worsens after activity and resolves after rest; after the joint has been stationary for a long time and then moved, there is a transient local stiffness that lasts no more than 30 minutes and disappears after activity; in severe cases, there is arthralgia and limitation of activity even at rest; the affected joints are often accompanied by pressure pain, bony hypertrophy, bony friction sounds, and a few patients have deformities. A small number of patients have deformity.