Seven Years of Back Pain — And the Diagnosis That Changed Everything

How inflammatory back pain can hide behind normal blood tests

For seven years, back pain had become part of his life.

It started when he was only 13 years old. What began as pain in his lower back and right hip gradually became something he simply learned to live with. He saw different doctors, tried one anti-inflammatory medication after another, and underwent numerous blood tests — yet no clear explanation emerged.

By the age of 20, he had almost stopped believing anyone would find an answer.

When his mother first came to our clinic, she brought a thick folder filled with years of investigations. Like many parents, she refused to give up, even when her son had begun to lose hope.

What she brought wasn't just a file — it was seven years of unanswered questions.

The patient's experience above is one individual's story. The sections that follow are general medical guidance and are not drawn from his case.

When Normal Blood Tests Don't Tell the Whole Story

One of the biggest misconceptions in medicine is that normal blood tests always mean there is no inflammatory disease.

Normal ESR or CRP does not exclude axial spondyloarthritis, and normal inflammatory markers should not prevent further assessment when the clinical pattern remains suggestive.¹

In his case, the relevant findings were on imaging: sacroiliitis, inflammation of the sacroiliac joints that connect the spine to the pelvis. Sacroiliitis on imaging is not independently diagnostic. Imaging findings are interpreted together with the clinical history, examination and other investigations before a diagnosis is made.¹

The Second Visit

When he returned to the clinic, he came in himself.

He was limping.

His right hip pain had become much worse, and imaging showed active inflammation together with moderate structural damage to the hip joint.

Hip involvement can affect function and may influence treatment decisions, so it is one of the factors considered during specialist assessment.

Choosing the Right Treatment

In general management of axial spondyloarthritis:²

• NSAIDs may be offered for pain and stiffness when clinically appropriate.
• Exercise and specialist physiotherapy are important parts of management.
• Conventional DMARDs are not normally used for purely axial disease, but may be considered where there is peripheral arthritis.
• Biologic or targeted therapy may be considered for persistently active disease after appropriate assessment.

An individual clinical decision in this case: because biologic therapy was financially out of reach for this family, and because his hip arthritis represented peripheral joint involvement, we began a low-dose conventional DMARD alongside NSAIDs. He returned after one month and the limp had almost disappeared. This was a decision made for one patient in specific circumstances; it is not evidence that conventional DMARDs are effective for axial disease.

This case reminds us that while clinical guidelines should guide our decisions, thoughtful medical care also requires individualised judgment. Every patient is different — a theme we explore in how clinical guidelines and clinical judgement work together and how I choose the right treatment.

Why Is Axial Spondyloarthritis Often Diagnosed Late?

• Normal blood tests despite active disease.
• Early X-rays may appear normal.
• Symptoms are often mistaken for mechanical back pain.
• The disease commonly begins during the teenage years or early adulthood.

What Is Axial Spondyloarthritis?

Axial spondyloarthritis is a chronic inflammatory disease affecting the sacroiliac joints and spine. It may also involve the hips, knees, eyes, skin, or gastrointestinal tract. Unlike ordinary mechanical back pain, it is caused by immune-mediated inflammation and requires different treatment.

When Should You Suspect Inflammatory Back Pain?

These features are clues that may increase suspicion. They are not diagnostic criteria, and their absence does not exclude the condition:

• Improvement with movement rather than rest.
• Morning stiffness lasting more than 30 minutes.
• Pain during the second half of the night.
• Improvement with NSAIDs.

Persistent back pain beginning before the age of 45 warrants clinical assessment, particularly when inflammatory features are present or when there is associated psoriasis, uveitis, inflammatory bowel disease, enthesitis or a family history of spondyloarthritis.¹

Key Takeaways

• Normal blood tests do not rule out inflammatory arthritis.
• MRI can show active inflammation before structural changes become visible on plain X-rays, but MRI findings must be interpreted in the full clinical context.¹
• Persistent back pain in young adults deserves careful evaluation.
• Timely recognition can reduce prolonged symptoms and allow appropriate treatment and monitoring, but individual outcomes vary.
• Individualised care remains fundamental to good medicine.

Frequently Asked Questions

Can you have axial spondyloarthritis with completely normal blood tests?

Yes. Normal CRP and ESR do not rule out active disease and are a common reason for delayed diagnosis.

Is a positive HLA-B27 test needed for diagnosis?

No. HLA-B27 is not required for diagnosis, and a negative result does not exclude axial spondyloarthritis. Clinical features and imaging are interpreted together.¹

Can MRI diagnose the disease earlier than X-rays?

MRI can show active inflammation before structural changes become visible on plain X-rays, but MRI findings must be interpreted in the full clinical context.¹

Can axial spondyloarthritis affect the hip?

Yes. Hip involvement can affect function and may influence treatment decisions.

What is the usual treatment?

NSAIDs may be offered for pain and stiffness, alongside exercise and specialist physiotherapy. Biologic or targeted therapy may be considered for persistently active disease after appropriate assessment, while conventional DMARDs are not normally used for purely axial disease but may be considered for peripheral arthritis.²

How long does treatment take to work?

It depends on the medication. Conventional DMARDs often take two to three months, although individual responses vary.

Can teenagers develop axial spondyloarthritis?

Yes. Symptoms often begin during adolescence or early adulthood.

Is chronic back pain always caused by a slipped disc?

No. Persistent inflammatory-pattern back pain should prompt assessment by a rheumatologist.

When should I see a rheumatologist?

If persistent back pain began before the age of 45 — particularly with inflammatory features, or with associated psoriasis, uveitis, inflammatory bowel disease, enthesitis or a family history — clinical assessment by a consultant rheumatologist in Dubai is warranted.¹

Our Philosophy

At Health Call Clinic, we believe every patient deserves individualised care. Clinical guidelines provide an invaluable framework, but thoughtful clinical judgment, careful listening, and personalised decisions remain at the heart of good medicine. You can read more about why we practice medicine this way.

Author's note: This story is shared with the permission of the patient and his family. All identifying details have been removed or altered to protect privacy; the clinical course and lessons described remain true to the case.