Understanding Ankylosing Spondylitis: Key Facts for Patients

Advertisements Understanding Ankylosing Spondylitis: A Patient‑Friendly Guide Ankylosing spondylitis (AS) is a type of arthritis that mainly affects the spine and the joints at the base of the spine, called the sacroiliac joints. It causes inflammation that leads to pain and stiffness, especially in the lower back and hips. Over time, this inflammation can cause…