Non Radiographic Axial Spondyloarthropathy: Causes, Symptoms, and Treatment
Medically reviewed by Harsha Moole, MD, Internal Medicine. Last reviewed: October 2, 2026.
What kind of doctor treats Non Radiographic Axial Spondyloarthropathy?
A primary care doctor can start the evaluation and usually refers the patient to a rheumatologist, who confirms the diagnosis and manages stronger medicines. A direct primary care doctor, who charges a flat monthly fee instead of billing insurance, can manage the early steps well and will refer when needed. A concierge doctor plays a similar role.
What it is
Non radiographic axial spondyloarthropathy is a type of arthritis that causes long term pain and stiffness in the spine and in the sacroiliac joints, which connect the spine to the pelvis. The damage does not yet show up on a regular x-ray, but the person has real symptoms, and an MRI can often find signs of it.
Symptoms
The main symptom is low back pain lasting three months or longer, often worse with rest and better with movement. Morning stiffness lasting more than 30 minutes is common. Some people also have pain in the buttocks, hips, or neck, a painful red eye, or tiredness.
Causes and who gets it
Doctors do not know exactly what causes this condition. It happens when the immune system attacks the joints of the spine by mistake. Genes play a role, and many people have the HLA-B27 gene. It usually starts before age 45.
How doctors diagnose it
There is no single test. Doctors ask about the pattern of the pain, check how the spine moves, and may order imaging. A regular x-ray may look normal, which is why the condition is called non radiographic. An MRI can show swelling before changes appear on x-ray.
Treatment
Treatment aims to reduce pain and stiffness and keep the spine moving well. Most people improve but are not cured. The first medicines usually tried are NSAIDs, such as ibuprofen or naproxen. Exercise is a key part of care. If NSAIDs do not help enough, a specialist may suggest biologics. Doctors monitor the spine over time, since the condition may later show up on x-ray.
When to see a doctor
Anyone with back pain lasting more than three months should see a doctor. Seek care sooner if back pain comes with fever, numbness, weakness in the legs, or problems controlling the bladder or bowels. A painful, red eye needs prompt attention.
Common questions
Is non radiographic axial spondyloarthropathy the same as ankylosing spondylitis?
They are closely related. Ankylosing spondylitis is the form of the disease that shows changes on x-ray. Non radiographic axial spondyloarthropathy causes similar symptoms, but the x-ray looks normal. An MRI may show the swelling instead.
Will my back become stiff and frozen over time?
Not necessarily. Early treatment and regular exercise help many people keep good movement in the spine. Outcomes differ from person to person. Some people do develop more stiffness over the years.
Can exercise really help back pain from this condition?
Yes. Movement is one of the main treatments. Many people feel less stiffness when they stay active. A physical therapist can teach exercises that are safe and targeted for the spine.
Is this condition curable?
There is no cure, but treatment usually reduces pain and stiffness. Many people manage the condition well for years with medicine and exercise.
Sources
Medical Disclaimer
This content is for general educational and informational purposes only and is not medical advice. It is not a substitute for professional medical advice, diagnosis, or treatment, and reading it does not create a doctor-patient relationship. Always seek the advice of your physician or another qualified health provider with any questions about a medical condition, and never disregard or delay seeking professional advice because of something you read here. If you think you may have a medical emergency, call 911 (or your local emergency number) immediately.
