Rheumatoid Arthritis: Explained With Pictures
By Carol & Richard Eustice, About.com
Updated: October 21, 2006
About.com Health's Disease and Condition content is reviewed by Kate Grossman, MD
With rheumatoid arthritis, inflammation of the synovial lining causes swelling, pain, redness, warmth, and stiffness of the affected joint. The synovium begins to thicken and inflamed cells release enzymes that digest bone and cartilage. Joint damage and joint deformity may result causing limited range of motion and decreased function of the joint.
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