MRI·26 April 2026·Northwest Health

Persistent back pain: when a spine MRI is worth it

Most back pain settles on its own, but when it doesn't, knowing why makes all the difference to how you treat it.

Back pain is one of the most common reasons people visit a GP — and one of the most frustrating to live with when it lingers. An X-ray, if you've had one, may have shown nothing remarkable. That doesn't mean there's nothing to find; it means X-rays have real limits when it comes to soft tissue. A spine MRI looks at an entirely different layer of detail.

What a spine MRI can show

MRI is far more revealing than X-ray for the structures most likely to be causing persistent back or leg pain:

  • Intervertebral discs — bulges, prolapses and degeneration
  • Nerve roots — compression or irritation that may explain sciatica or referred leg pain
  • Spinal canal — stenosis (narrowing) that can cause pain on walking
  • Facet joints — arthritis or inflammation in the small joints along the spine
  • Spinal cord and surrounding structures — for those with neurological symptoms

Because it uses no ionising radiation, MRI is safe for repeated use and for a wide range of patients.

When is a spine MRI worth considering?

A scan isn't necessary for every episode of back pain, but it's often the right next step if:

  • Pain has persisted for six weeks or more without meaningful improvement
  • You have pain, numbness or tingling running down one or both legs (sciatica)
  • You've noticed weakness in the legs or changes in bladder or bowel function (seek urgent advice for these)
  • You want a clear diagnosis before deciding between physiotherapy, an injection or specialist referral
  • You've tried treatment but it isn't working and you're not sure why

What's included at Northwest Health

There's no need for a GP referral before booking. Our clinic GP conducts a pre-scan review to confirm MRI is appropriate for your symptoms and safe for you personally. The scan covers the relevant section of your spine — cervical (neck), thoracic (mid-back) or lumbar (lower back) — and takes approximately 30–45 minutes.

Every scan is reported by a consultant radiologist, and the written report is usually ready within three to five working days. If you'd like two spinal regions scanned in the same visit — for example, lumbar and cervical — that's covered by our two-area price.

How much does a private spine MRI cost?

  • 1 spinal region — £400 (includes GP review and consultant radiologist report)
  • 2 spinal regions — £600
  • 3 areas (Silver) — £775

Northwest Health is CQC-registered, and all imaging is reported by qualified consultant radiologists — not automated software.

From scan to next steps

A spine MRI report won't solve your back pain on its own, but it gives you and your care team a factual starting point. Some people find a structural explanation leads to targeted physiotherapy that finally works. Others find reassurance that nothing serious is driving the pain — which matters too.

See our private MRI service →

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