Rheumatoid Arthritis Overview

Rheumatoid Arthritis (RA) Basics

Learn all about rheumatoid arthritis, including the causes, symptoms, and treatment.

RA is an autoimmune disorder that causes inflammation of the lining of the joints. The body tissue is mistakenly attacked by its own immune system.

Think your child might have JRA? Learn about the symptoms and when to call the doctor.

Learn how genetics, gender, and other factors increase the chances of developing RA.

RA and Your Joints

Find out about symptoms and treatments of hand and finger RA, including an explanation of swan-neck deformity and boutonniere deformity.

Rheumatoid arthritis of the knee causes the joints to become tender, warm, and swollen. Although knee osteoarthritis causes pain and stiffness, joint pain with knee RA is more severe.

Symptoms of hip arthritis may occur later than those from RA affecting smaller joints.

Learn how to find out if your RA is active and how you can prevent joint damage.

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