Living with Arthritis
Arthritis refers to inflammation of a joint. The inflammation can affect any of the important structures inside a joint, including the joint lining (synovium), bones, cartilage, or supporting tissues. Common symptoms of arthritis include pain, stiffness, and swelling of the joint. The condition may affect one or several joints throughout the body.
There are many possible causes of arthritis, although some are much more common than others. Some types of arthritis respond well to treatment and resolve without any lingering effects, whereas other types of arthritis are more difficult to control and can be disabling. (Source: http://www.uptodate.com/contents/arthritis-beyond-the-basics)