What are the causes for Ankylosing Spondylitis Medications?
The precise cause of ankylosing spondylitis is unknown. Many people with ankylosing spondylitis have other family members with the disease. A gene marker known as human lymphocyte antigen (HLA) type B27 (HLA-B27) is found by blood testing in most individuals with ankylosing spondylitis, while it is also found in a small percentage of the general population. This blood test can aid in the diagnosis of ankylosing spondylitis.