Eight in ten people experience it. Almost all recover. Here's how to tell ordinary back pain from the kind that needs urgent attention — and what actually works.
Most low back pain is 'mechanical' — arising from muscles, ligaments, small joints or discs — and settles within 4–6 weeks. A 'slipped disc' (disc prolapse) occurs when the soft centre of a disc bulges through its outer ring, sometimes pressing a nerve and causing leg pain (sciatica).
Crucially, scary-sounding scan reports are common in pain-free people: disc bulges appear on MRI in over half of adults over 40 with no symptoms at all. Reports don't need treatment; people do.
Sudden lifting or twisting, prolonged poor sitting posture, weak core and hip muscles, obesity, smoking (impairs disc nutrition), stress and poor sleep (which amplify pain), and normal age-related disc changes.
Sciatica specifically comes from a nerve being compressed or inflamed by disc material — the leg pain is often worse than the back pain.
Mechanical pain: aching across the lower back, worse with certain positions, better with movement change. Sciatica: sharp pain shooting below the knee into the calf or foot, sometimes with tingling or numbness.
RED FLAGS — seek urgent care if back pain comes with: loss of bladder or bowel control, numbness in the saddle area, progressive leg weakness or foot drop, fever, unexplained weight loss, or follows significant trauma. These are rare but serious.
For typical back pain without red flags, no imaging is needed in the first 4–6 weeks — examination is enough, and early MRI often mislabels normal aging as disease. X-ray/MRI is indicated for red flags, significant nerve symptoms, or pain that isn't improving on schedule.
Your doctor will test nerve function: strength, reflexes and sensation in the legs.
Stay active — bed rest beyond a day or two delays recovery. Evidence-based care: short-term pain relief, heat, graded return to activity, and progressive exercise (core strengthening, McKenzie-style extension exercises for many disc problems, walking).
Most sciatica also settles: about 90% of disc prolapses improve within 6–12 weeks as the protruding fragment shrinks. Targeted nerve-root injections can control severe leg pain while nature does its work.
Surgery has a small but definite role: emergency surgery for cauda equina syndrome (the bladder/saddle red flags), and elective microdiscectomy for sciatica with significant weakness or intractable leg pain beyond 6–12 weeks. For nerve compression, surgery relieves LEG pain excellently; it is not a good operation for back pain alone.
Fusion and other procedures are reserved for specific instability or deformity — not routine 'wear and tear'.
After microdiscectomy: walking the same day, desk work in 2–3 weeks, avoiding heavy lifting for 6 weeks, then progressive rehab. Long-term outcomes for leg pain are excellent.
For everyone: the spine loves consistency — regular exercise is the strongest protection against recurrence, cutting repeat episodes significantly.
Strengthen your core and hips, lift with your legs and the load close to your body, break up long sitting every 30–45 minutes, maintain healthy weight, don't smoke, sleep well — and stay generally active. The best posture is the next posture.
Usually not. MRI findings must match your symptoms and examination. Painless bulges are extremely common, and even symptomatic prolapses mostly resolve without surgery within weeks to months.
No — more than a day or two of rest weakens muscles and prolongs pain. Keep moving within comfort; short walks several times daily beat lying still.
Briefly, during acute pain or heavy tasks, a belt can comfort. Long-term dependence weakens core muscles. Think of it as a crutch, not a cure.
Medium-firm mattresses have the best evidence for back comfort. Beyond that, whatever lets you sleep well — sleep quality itself strongly influences pain.
If leg weakness is progressing, your foot is dropping, or you have numbness around the saddle area or trouble controlling urine/stool — go to a hospital immediately. These signs need urgent assessment.
Written from current orthopaedic guidelines and peer-reviewed literature, and reviewed by the OssifiDE surgical team. Last reviewed: July 2026. This guide is educational and does not replace a consultation — your treatment should always be individualised by your doctor. Download the printable PDF leaflet to share with family or bring to appointments.
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