Back pain is an extremely common presentation, particularly among professionals with long working hours, prolonged driving and sedentary office routines. In most cases, the cause is mechanical. However, a proportion of patients have underlying inflammatory disease that requires early specialist treatment. Recognising the difference is important — early diagnosis prevents long-term damage.
Mechanical Back Pain
Mechanical (non-inflammatory) back pain is usually related to muscle strain, disc wear, posture, gym injury or facet joint irritation. It typically worsens with activity or prolonged sitting, improves with rest, causes short-lived morning stiffness and remains localised to the lower back. Management focuses on targeted physiotherapy, core strengthening, posture correction, weight optimisation and short courses of NSAIDs when appropriate. Most patients improve with structured rehabilitation.
Inflammatory Back Pain (Ankylosing Spondylitis)
Inflammatory back pain often begins before the age of 40–45 and develops gradually. Features that suggest inflammation include morning stiffness lasting more than 30 minutes, pain that improves with movement (not rest), night pain in the early hours, and alternating buttock pain. It may be associated with psoriasis, painful red eye (uveitis), inflammatory bowel disease (Crohn’s or ulcerative colitis), heel pain or swollen digits, and family history of spondyloarthritis.
MRI can detect early sacroiliac inflammation even when standard X-rays are normal. First-line treatment is NSAIDs. In patients with persistent active disease, modern biologic therapies have transformed outcomes, reducing inflammation, preserving spinal mobility and significantly improving quality of life.
Osteoporosis and Vertebral Fractures
In individuals over 50 — particularly post-menopausal women or those on long-term steroids — sudden severe back pain may indicate a vertebral compression fracture due to osteoporosis. Early imaging and bone health assessment are important to prevent further fractures.
Red Flags — Seek Urgent Assessment
Do not ignore back pain associated with: new weakness or numbness, bladder or bowel disturbance, unexplained weight loss or fever, history of cancer, significant trauma, or severe persistent night pain. These symptoms require urgent medical evaluation.
Why Early Assessment Matters
Not all back pain is mechanical. Back pain beginning before age 45, associated with prolonged stiffness or linked to skin, eye or bowel symptoms, may indicate inflammatory disease. Early specialist assessment allows accurate diagnosis, appropriate imaging, and timely treatment before permanent structural damage develops.
Frequently Asked Questions
How do I know if my back pain is inflammatory?
Back pain that begins before age 40–45, improves with movement rather than rest, causes prolonged morning stiffness (over 30 minutes), or wakes you in the early morning may suggest inflammatory back pain. Associated psoriasis, eye inflammation, bowel disease or family history increases suspicion.
When should I see a rheumatologist for back pain?
Seek specialist assessment if back pain is persistent (over 3 months), begins at a young age, is associated with stiffness or night pain, or occurs alongside skin, eye or bowel symptoms.
What is ankylosing spondylitis (axial spondyloarthropathy)?
This is a chronic inflammatory condition affecting the spine and sacroiliac joints. Early MRI can detect inflammation before changes appear on X-ray. Modern treatments effectively control symptoms and prevent progression.
Can MRI detect back inflammation early?
Yes. MRI is particularly useful for detecting early sacroiliitis or spinal inflammation when standard X-rays appear normal.
Are biologic treatments safe for back pain?
Biologic therapies for inflammatory spinal disease are well established and carefully monitored. They are only prescribed after specialist assessment. These medications reduce inflammation and improve quality of life.
