Ankylosing spondylitis (AS) is a chronic, painful inflammatory condition that can cause severe back pain. It may be tricky to diagnose because its symptoms can be mistaken for other diseases and sometimes look different from person to person. Not treating the disease can cause serious complications.

One of the first steps in taking charge of your condition is learning more about it.

Answer these seven questions to see how your ankylosing spondylitis knowledge stacks up.