Ankylosing spondylitis (AS) is a chronic inflammatory disease primarily affecting the spine and sacroiliac joints (those between the spine and hipbone). Less commonly, AS can affect other joints such ...

Seronegative spondylitis is spine inflammation that occurs with a blood test that is negative for possible causes. Back pain happens for a variety of reasons, such as mechanical issues, structural ...

This form of inflammatory arthritis is more common in women than previously thought — take a look at these key facts you should know. If you’re a woman who has been diagnosed with ankylosing ...