Ankylosing Spondylitis What is ankylosing spondylitis? It is arthritis that affects the spine, usually producing redness, heat, swelling, and pain in the spine where it joins the pelvis.

Arthritis Arthritis is joint inflammation that can cause stiffness or pain. Learn more about the symptoms & treatments.

Autoimmune Diseases In autoimmune diseases, proteins known as autoantibodies target the body’s own healthy tissues by mistake, signaling the body to attack them.

Gout What is gout? It is a kind of arthritis that causes painful and stiff joints. Gout is caused by the build-up of crystals of uric acid in your joints.

Hip Replacement Surgery Hip replacement surgery removes damaged or diseased parts of a hip joint and replaces them with new, artificial parts.

Juvenile Idiopathic Arthritis (JIA) Juvenile arthritis describes arthritis in children. Arthritis is caused by inflammation of the joints. Find out all you need to know about juvenile arthritis.

Osteoarthritis What is osteoarthritis? It damages the slippery tissue that covers the ends of bones, causing bones to rub together, producing pain, swelling, and loss of motion.

Polymyalgia Rheumatica and Giant Cell Arteritis Polymyalgia rheumatica and giant cell arteritis are closely linked inflammatory conditions. PMR causes muscle pain and stiffness in the shoulders, upper arms, hip area, and neck. GCA causes headaches, scalp tenderness, jaw pain, and eye problems.

Psoriatic Arthritis What is psoriatic arthritis? It can occur in people who have psoriasis (scaly red and white patches). It affects the joints and areas where tissues attach to bone.

Reactive Arthritis What is reactive arthritis? It is caused by an infection and results in joint pain and swelling. You may also have red, swollen eyes and a swollen urinary tract.

Rheumatoid Arthritis What is rheumatoid arthritis? It is a disease that affects multiple joints, resulting in pain, swelling, and stiffness. Tiredness and fever may also be present.

Scleroderma Scleroderma causes areas of tight, hard skin, but can also harm your blood vessels and organs. Learn the causes and treatments of this skin disease.

Sjögren’s Disease What is Sjögren’s disease? It is a disease that affects the glands that make moisture. It most often causes dryness in the mouth and eyes.

Systemic Lupus Erythematosus (Lupus) Lupus is a disease where the body's defense system attacks healthy cells and tissues, causing damage to many parts of the body. Learn more about this disease.