Common forms of arthritis include:
- Osteoarthritis—the most common. It is a chronic disease typically involving the weight-bearing joints such as the knee, hip and spine and afflicts nearly 21 million people in the United States.
- Rheumatoid—an inflammatory disease that involves the lining of the joint. Rheumatoid arthritis is an autoimmune disease. More than 2 million people in the United States are afflicted and it is more common among women. Rheumatoid arthritis generally strikes at a younger age than Osteoarthritis.
- Fibromyalgia -- chronic widespread pain in muscles and soft tissues
surrounding the joints. Fibromyalgia can exist along or along with