There are several different types of arthritis. Osteoarthritis and rheumatoid arthritis are two of the most common forms. Although the symptoms of these two types of arthritis can be similar, it's very important to distinguish between them in order to determine the proper treatment.

At the University of Michigan Health System, our experienced rheumatologists will do appropriate tests to determine which type of arthritis you have. Then we will develop an effective treatment plan and will explain your options.

Osteoarthritis occurs when the smooth cartilage joint surface wears out. Osteoarthritis usually begins in an isolated joint.

Rheumatoid arthritis is an autoimmune disease, which means that the immune system malfunctions and attacks the body instead of intruders. In this case, it attacks the synovial membrane that encases and protects the joints. Rheumatoid arthritis often targets several joints at one time. The symptoms of rheumatoid arthritis include: