Axial spondyloarthritis: symptoms and when to seek assessment
Updated: Oct 15
By Andy Duckmanton, BOst (Hons), GOsC registered osteopath.
Editorial update: 15 October 2026.
Axial spondyloarthritis, often shortened to axial SpA, is an inflammatory condition mainly affecting the spine and the joints connecting it to the pelvis. Ankylosing spondylitis is a form with characteristic changes visible on X-rays. People with non-radiographic axial SpA do not have those changes on ordinary X-rays.
This guide concerns recognition and referral. It cannot diagnose the condition from a symptom checklist.
A pattern worth discussing
Back or buttock pain beginning before age 45 and lasting more than three months can warrant a closer look, particularly if it began gradually, is troublesome at night or after rest, and improves with movement.
Tell your GP about persistent heel or tendon-attachment pain, swollen joints, psoriasis, inflammatory bowel disease, episodes of eye inflammation or a relevant family history. None of these proves the diagnosis alone. Axial SpA can affect women as well as men.
Describe the overall pattern rather than only the most painful area. If the condition is suspected, rheumatology assessment can bring together the history, examination and relevant tests.
Normal tests do not settle every case
Normal inflammation markers, a negative HLA-B27 blood test or a normal plain X-ray do not individually exclude axial SpA. A specialist decides whether further assessment or imaging is appropriate.
Non-radiographic axial SpA does not automatically progress to ankylosing spondylitis. The purpose of diagnosis is to understand and manage your current condition, rather than predict an inevitable future.
Eye symptoms need prompt help
Eye pain, a very red eye, sensitivity to light or blurred vision needs urgent same-day medical advice through your GP, eye service or NHS 111. Uveitis is one possible cause. Mention known or suspected inflammatory arthritis.
Loss of vision is an emergency: go to A&E or call 999.
The next step
Medical assessment should take priority when inflammatory disease is suspected. Osteopathic care must not delay rheumatology referral or be presented as preventing inflammatory joint damage.
If you already have a diagnosis, follow your medical plan and discuss activity with a specialist physiotherapist. The separate guide to living with axial spondyloarthritis and ankylosing spondylitis explains treatment, exercise and precautions.
For other types of arthritis, use the arthritis overview.
Sources and further information
Sources checked: 13 October 2026.