We are the National Axial Spondyloarthritis Society (NASS) and we are here to transform the diagnosis and care of people living with axial SpA. Axial SpA works silently. We don’t.

Axial spondyloarthritis (axial SpA) is an inflammatory arthritis where the main symptom is back pain

Axial spondyloarthritis is an umbrella term and it includes:

Ankylosing Spondylitis (AS)

Where changes to the sacroiliac joints or the spine can be seen on x-ray.

Non-radiographic axial spondyloarthritis

Where x-ray changes are not present but inflammation is visible on MRI or you have symptoms.