Why your scan results don't tell the full story

Getting a scan result that lists words like "degeneration," "bulging disc," or "tear" can be frightening. It's natural to assume those findings are the cause of your pain and a map of how bad things are. But the relationship between what a scan shows and what you actually feel is far looser than most people expect.

Imaging finds things in pain-free people too

This is the finding that surprises people most: when researchers scan people with no pain at all, they routinely find the same "abnormalities" that show up in people who are in pain.

Studies of people with no pain at all have found disc bulges, degeneration, and other changes in a large proportion of the population — and the likelihood rises steadily with age. In one widely cited review, signs of disc degeneration appeared in around 37% of pain-free 20-year-olds and rose to about 96% by age 80. In other words, many imaging findings are a normal part of getting older, like grey hair or wrinkles, rather than a clear source of pain.

A scan shows what a body part looks like. It doesn't show how much it hurts, how well it functions, or what it's capable of.

Pain is more than structure

Pain is produced by the nervous system, and it's influenced by far more than tissue damage — sleep, stress, mood, activity levels, and previous experiences all play a role. This is why two people with near-identical scans can have completely different levels of pain and function.

It also explains something hopeful: because pain isn't simply a readout of damage, it can improve even when the structure on the scan stays the same.

When scans are useful

None of this means imaging is worthless — it's a valuable tool in the right context:

• After significant trauma, to check for fractures
• When specific "red flag" symptoms suggest something serious
• When the results would genuinely change the treatment plan
• Before certain surgical decisions

The risk of over-relying on scans

When people believe a scan has revealed something badly "wrong," they often move less, brace themselves, and become fearful of activity — which tends to make pain and function worse, not better. The label on the scan can become its own obstacle to recovery.

What this means for you

If your scan shows changes, it doesn't mean you're damaged beyond repair or that activity will harm you. Treatment decisions are guided primarily by your symptoms, your function, and a physical assessment — not by the scan alone. For most musculoskeletal problems, the path forward is movement, strength, and graded activity, regardless of what the imaging shows.

If you're carrying worry from a scan result, talking it through with a physiotherapist who can put the findings in context is often a relief in itself — and the first step toward moving freely again.