There are many types of arthritis (disease of the joints). This topic is about rheumatoid arthritis. If you are looking for information about how juvenile idiopathic (rheumatoid) arthritis affects young children, see the topic Juvenile Idiopathic Arthritis. If you are looking for information on the most common form of arthritis in older adults, see the topic Osteoarthritis. Learn more.http://www.healthlibrary.com/rheumatoid_arthritis.htm
