Why get tested?
To determine whether you have human leukocyte antigen B27 (HLA-B27) on the surface of your cells; to help assess the likelihood that you have an autoimmune disorder associated with the presence of HLA-B27

When to get tested?
When you have symptoms of chronic inflammation, pain, and stiffness in certain areas of your body, such as your back, neck, and chest, or eyes, especially if you are male and the symptoms began in your early 30s

Sample required?
A blood sample drawn from a vein in your arm