what is Rheumatoid Arthritis

Rheumatoid arthritis, also called: RA , is one of the most common and serious forms of arthritis that causes pain, swelling, stiffness and loss of function in your joints. It can affect any joint but is common in the wrist and fingers. More women than men get rheumatoid arthritis. It often starts between ages 25 and 55. You might have the disease for only a short time, or symptoms might come and go. The severe form can last a lifetime.

RA is a chronic disease, mainly characterized by inflammation of the lining, or synovium, of the joints. Itcan lead to long-term joint damage, resulting in chronic pain, loss of function and disability.

RA is different from osteoarthritis, the common arthritis that often comes with older age.It can affect body parts besides joints, such as your eyes, mouth and lungs. RA is an autoimmune disease, which means the arthritis results from your immune system attacking your body's own tissues.

No one knows what causes rheumatoid arthritis. Genes, environment and hormones might contribute. Treatments include medicine, lifestyle changes and surgery.These can slow or stop joint damage and reduce pain and swelling.