We outline a few key facts and figures about AS, like who is more at risk and the areas of the body it tends to affect.

Ankylosing spondylitis primarily affects the joints in your spine. Medical imaging can help us see some of the inflammation and damage and how they lead to symptoms. Ankylosing spondylitis (AS) is ...

Welcome, everyone. I'm Dr. John Whyte, the chief medical officer at WebMD. Ankylosing spondylitis is the type of arthritis that causes pain and stiffness in your spine. It typically occurs first ...