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Myths · Myth

Will an MRI explain my pain?

An MRI often finds disc bulges and wear, but these are common in people with no pain. Why a scan rarely explains back pain and when it is actually useful.

Strong evidence3 sources2 min readUpdated 4 Oct 2026By BodySignals editorialMedical review pending

Also called MRI back pain, does MRI show cause of back pain

The claim

If you get an MRI, it will show what is causing your back pain, and then it can be fixed.

Where it comes from

Scans are powerful and detailed, and in many other conditions they do find the cause. It feels natural that a picture of the spine should show where the pain comes from.

What the evidence actually shows

  • Most back pain has no identifiable cause. For nearly everyone with low back pain, no specific structure can be pinned down as the source; only a small share has a serious cause.1
  • Findings are common without pain. In 3,110 people with no back pain, disc bulges were found in 30% at age 20 and 84% at age 80, and disc degeneration in 37% and 96%.2
  • Guidelines advise against routine scans. NICE recommends imaging only when the result is likely to change management, for example when surgery is being considered.3
What the evidence shows

An MRI shows structure, not pain. Because the same findings are common in people without pain, a scan usually cannot tell you why your back hurts, and it can lead to worry and needless treatment.23

When a scan does help

When there are signs of a serious cause, when nerve symptoms are getting worse, or when a procedure is being planned. See when imaging is useful and red flags.

What to do instead

Focus on what changes pain: staying active, exercise and time. See what works for back pain. If you already have a report full of findings, disc bulge versus herniation explains the words.

Footnotes

  1. What low back pain is and why we need to pay attention (Lancet Low Back Pain Series). 2018. ↩

  2. Systematic literature review of imaging features of spinal degeneration in asymptomatic populations. 2015. ↩

  3. Low back pain and sciatica in over 16s: assessment and management (NICE guideline NG59). 2026. ↩

General information, not medical advice. Every claim carries its source; where the evidence is thin, the page says so.Editorial policy · How we grade evidence · All sources · Disclaimer

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