Arthritis Medical Reference

Non-radiographic axial spondyloarthritis causes inflammation in the spine, which can lead to back pain. Learn what causes this type of arthritis, how it's treated, and what to expect.

Non-radiographic axial spondyloarthritis (nr-axSpA) is a rare type of arthritis that often strikes in young adulthood. Here’s what to know about its symptoms, causes, and treatment.

Learn about tenosynovitis, a painful condition in which the sheath that holds a tendon becomes inflamed.

Learn why your doctor might order a synovial fluid test and what it can reveal about your joints.

Are you scheduled to have shoulder replacement surgery? Learn more about the procedure, risks, recovery time, and what to expect.

What’s the link between gout and diabetes? Here’s what you need to know about these two related diseases.

If you have gout, you need to know the triggers. Learn how to avoid the foods, medications, and other things that cause flares.

Spondyloarthropathies are a arthritis-related conditions that strike your spine and the connective tissues of your bones.

Do your fingers and toes go numb easily? It might be more than just the cold. Learn more about a condition called Raynaud's disease and what you can do if you have it.

Chemicals like DEET can keep ticks away. But is it safe to use when you’re pregnant?

Some tests check for Lyme disease, but they’re not precise. Because of that, your symptoms and the time you spend outdoors are key to a diagnosis.

The foods and drinks you have can affect your gout flare-ups. Learn more about which foods to avoid, and which low-purine foods to make a bigger part of your diet.

Gout is a painful condition caused by uric acid buildup in the joints. Symptoms can mimic other disorders, so it’s important to be sure that it’s gout.

Gout is painful inflammation of the joints caused by too much uric acid. The good news is that it can be treated with medicines.

Could you have gout? Learn more about the symptoms of this condition and the things you can do to ease the pain.

Arthroscopy is a popular form of joint surgery that offers quick recovery. Learn why doctors might choose this procedure and what you can expect if you have it.

Gout can cause serious pain in your big toe, or in other joints, and it can last for days. Learn more about this condition and what causes it.

High levels or uric acid, one of the body’s waste products, can be a sign of gout or kidney stones. Learn what a uric acid blood test tells you, how it’s done, and what the results mean.

An arthrogram is a type of imaging that can reveal hard-to-find problems in your joints. Learn how it works, when you might need it, and how to get ready for it.

Olecranon bursitis is when the sac between your elbow bone and your skin gets swollen. This could result in a golf-ball sized lump on the tip of your elbow, which could look like cartoon Popeye’s elbow.

If you have a painful lump behind your knee, you could have a Baker’s cyst – also known as a popliteal cyst. Learn more about what it is, what causes it, and what your treatment options are.

Polymyositis is an autoimmune disorder that causes severe muscle weakness in adults. Learn about the causes and other symptoms.

Questions to ask your doctor about rheumatoid arthritis, from diagnosis to treatment.

WebMD explains the use of cortisone injection treatment for inflammation and possible side effects.

Learn about drugs, surgery, and other ankylosing spondylitis treatments.