Ankylosing spondylitis (AS) is a rare type of arthritis in the spine whose main symptom — back pain — is a common, everyday complaint. That’s just one reason why so many people with AS wait years for a correct diagnosis.
Ankylosing spondylitis (AS) is a rare type of arthritis in the spine whose main symptom — back pain — is a common, everyday complaint. That’s just one reason why so many people with AS wait years for a correct diagnosis.
