Health condition · Clinically reviewed
Chronic back pain, imaging (or not), rehab, injections and surgery decisions.
Back pain lasting more than 12 weeks. Most patients recover without imaging or surgery; a minority need specific procedures. Decisions are best made stepwise.
Why trust this guide
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Clinically reviewed
Written by our editorial team and reviewed by a registered UK clinician before publication.
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Sourced from guidance
Every claim is checked against NICE, RCP or peer-reviewed sources you can see at the end.
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Current for 2026
Reflects current UK guidance on stepwise assessment, rehab, interventional pain and surgery.
Key facts
Chronic back pain at a glance.
The essentials, in plain English — what chronic back pain is, when imaging matters, and how the stepwise plan is built.
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Definition
Back pain lasting more than 12 weeks — the point at which acute care crosses over into chronic management.
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Imaging
MRI is NOT first-line for uncomplicated chronic back pain — it is reserved for red flags or persistent radiculopathy.
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Red flags first
Red-flag screening is essential at every visit — cauda equina, infection, cancer, fracture and progressive deficit.
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Rehab is the foundation
Structured rehabilitation is the highest-evidence intervention — exercise, graded activity and pain-informed movement.
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Interventional pain
Facet injection, medial branch block, RFA and epidural steroid injection fit specific clinical patterns — not everyone.
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Surgery
Surgery is a last resort for select structural causes — persistent radiculopathy, instability or neurological compromise.
Why this guide matters
Stepwise decisions beat scattergun tests.
Chronic back pain is common; most people get better without an MRI or a surgeon. The value is in doing the right thing at the right time.
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Screen for red flags first
A short set of questions rules out serious causes — cauda equina, infection, cancer and fracture.
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Rehab does most of the heavy lifting
Structured physiotherapy, graded exercise and pain-informed movement carry the strongest evidence base.
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Procedures fit specific patterns
Injections and surgery help a subset of patients — chosen carefully, they can be transformative.
How the diagnosis is made
From first assessment to a stepwise plan.
The steps a UK clinician will normally follow, in order — so you know what to expect and why imaging is not always the first move.
Phase 1 · Screening
Red flags and neurological exam
Phase 2 · Assessment
Imaging if indicated and MDT input
Phase 3 · Managing
Rehab, targeted procedures, surgery if needed
- 01
Screening
Red-flag screen
SNRIP framework and cauda equina questions at every visit — saddle numbness, urinary retention, bilateral leg weakness.
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Screening
Neurological examination
Power, sensation, reflexes and straight-leg raise — to localise any nerve-root involvement.
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Assessment
Consider spine MRI
Only if red flags are present or radicular symptoms persist beyond 4–6 weeks despite rehab.
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Assessment
MDT pain assessment
Multidisciplinary review — pain physician, physiotherapist and psychologist together, when pain is complex.
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Assessment
Physiotherapy assessment
Movement patterns, deconditioning, fear-avoidance and goals — a rehab plan built around the person.
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Managing
Pain-management consultation
For a plan that combines medication, targeted injections and psychology-informed rehab.
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Managing
Spinal surgery referral
Only for select structural pathology — persistent radiculopathy, instability, or neurological compromise.
Typical timeline: 6–12 weeks from first appointment to a settled plan.
Symptoms
What chronic back pain looks like.
The pattern matters more than any single symptom — where the pain sits, what it does with movement, and whether it radiates into a leg.
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Axial back pain
Pain centred over the spine itself, without radiation — often mechanical in origin.
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Radicular (sciatica) pain
Shooting leg pain in a nerve-root distribution — often with numbness or weakness.
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Mechanical pain
Worse with certain positions or movements, better with others — a mechanical driver behind the pain.
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Facet-mediated pain
Extension and rotation aggravate; often bilateral, worse after standing or walking.
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Discogenic pain
Central low back pain worse with flexion, sitting and loading — often deep and aching.
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Spondylolisthesis / spondylosis
Structural slip or degenerative change — pain with activity, sometimes with leg symptoms.
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Coccygodynia
Pain localised to the tailbone, worst on sitting — often after a fall or childbirth.
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Red flag: cauda equina
Saddle numbness, urinary retention, bilateral leg weakness — call 999 or attend A&E immediately.
Treatment
How chronic back pain is treated in the UK.
A stepwise plan — rehab first, targeted medication and injections next, surgery for a select group. Here is what each option does.
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Structured physiotherapy programme
The evidence base for chronic back pain — assessment, exercise and progressive loading.
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Graded exercise / Pilates
Progressive movement and core conditioning — the most consistent way to reduce disability over time.
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CBT for chronic pain
Cognitive behavioural therapy targets the fear, avoidance and low mood that keep pain in the driving seat.
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Simple analgesia
Paracetamol and topical NSAIDs — modest but useful for flares alongside rehab.
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Neuropathic-pain medication
Duloxetine or gabapentin for radicular pain that has a clear neuropathic pattern.
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Facet injection or MBB → RFA
Diagnostic medial branch blocks followed by radiofrequency ablation for confirmed facet-mediated pain.
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Epidural steroid injection
Targeted steroid for radiculopathy from disc herniation — for pain that persists despite rehab.
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Selective spinal surgery
For a small, well-selected group — persistent radiculopathy, instability, or neurological compromise.
What this guide is based on
The sources behind every claim on this page.
UK national guidance and specialist society standards, current at the time of last review.
Key references
Guidelines and standards we relied on.
A quiet reminder
This guide is for information, not medical advice.
Your GP or pain team knows your history and can tell you which parts apply to you. If in doubt, get seen.
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NICE. Low back pain and sciatica in over 16s: assessment and management (NG59).
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Faculty of Pain Medicine. Standards and guidance.
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British Pain Society. Guidelines for chronic pain management.
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British Association of Spine Surgeons. Standards for spinal care.
Red flags
When back pain becomes an emergency.
Most chronic back pain is managed patiently. These are the situations where waiting is the wrong call.
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Cauda equina symptoms
Saddle numbness, urinary retention, bilateral leg weakness — call 999 or attend A&E immediately.
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Progressive neurological deficit
Worsening weakness, sensory loss or reflex change — urgent spinal review.
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Fever with back pain
Concern for spinal infection (discitis, epidural abscess) — same-day medical assessment.
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Unexplained weight loss
With new back pain — needs investigation for underlying pathology.
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Cancer history with new back pain
A change in pattern in a cancer survivor warrants prompt imaging.
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Trauma with new back pain
Especially in older adults or those on steroids — consider fracture and image accordingly.
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Structural deformity
A new or progressive spinal deformity needs specialist review.
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Long-term steroid use
Raises fracture risk — new back pain deserves imaging rather than watchful waiting.
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Bowel or bladder change
New incontinence or retention with back pain is a cauda equina symptom until proven otherwise.
Living with it
A long-term condition, but a very manageable one.
Four things that make the biggest difference day to day — movement, a flare plan, mindset, and steady reviews.
A quiet reminder
Consistency beats intensity, every time.
Small, steady changes — kept up for months — do more than a heroic week that does not last.
- 01 Movement
Keep moving
Rest deconditions the back — steady, graded activity is the single most consistent long-term treatment.
- 02 Flares
Have a flare plan
Know your escalation ladder — analgesia, gentle movement, and when to contact your team.
- 03 Mindset
Pain is not damage
For most chronic back pain, hurt does not equal harm — pain-informed movement is safe.
- 04 Reviews
Reassess regularly
A short review every few months keeps the plan honest — and catches red flags early.
Frequently asked
Everything we get asked about chronic back pain.
Quick answers on imaging, red flags, rehab, injections and when surgery is the right call.
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Do I need an MRI for chronic back pain?
Not usually. MRI is not first-line for uncomplicated chronic back pain — it is reserved for red flags, persistent radiculopathy, or when the result would change management. Imaging without a clear reason often finds incidental changes that do not explain the pain.
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What are the red flags I should never ignore?
Saddle numbness, urinary retention, bilateral leg weakness, progressive neurological deficit, fever with back pain, unexplained weight loss, new back pain with a cancer history, and significant trauma. Cauda equina symptoms are a 999 emergency.
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Will rest help my back?
A short rest during a bad flare is fine, but prolonged rest deconditions the back and makes chronic pain worse. Graded, steady activity — even when it feels counter-intuitive — has the best evidence.
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When is a steroid injection helpful?
Epidural steroid injection can help radicular (sciatica) pain from a disc herniation that has not settled with rehab. Facet injections and medial branch blocks help confirmed facet-mediated pain. Not everyone with back pain benefits.
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When is surgery the right answer?
For a small, well-selected group — persistent radiculopathy from a structural cause, instability, or neurological compromise. Surgery is not a treatment for non-specific axial back pain.
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How long does chronic back pain last?
By definition, chronic back pain lasts more than 12 weeks. With structured rehab and the right plan, most people improve function significantly even if pain does not disappear completely.
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