Ankylosing Spondylitis (AS)
Ankylosing spondylitis (pronounced ankle-oh-sing spon-dill-eye-tiss) is a form of arthritis that causes chronic (long-term) spine inflammation. Ankylosing spondylitis (AS) inflames the sacroiliac joints located between the base of the spine and pelvis. This inflammation, called sacroiliitis, is one of the first signs of Ankylosing spondylitis. Inflammation often spreads to joints between the vertebrae, the bones…