No evidence of

Read Your Scan Editorial Team·Last updated

Written from published radiology references and reviewed for plain language. Not written or signed by a physician, and not a diagnosis. How we write these pages

In plain language

This scan did not show the thing that was being looked for. It is a statement about what the images show, not a guarantee of absence — small or early disease can be invisible to any single scan.

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Where you'll see this

Impressions, answering the specific question the scan was ordered to answer.

Your report may word it No radiographic evidence of, No definite evidence of or Negative for. These mean the same thing.

Questions worth asking your doctor

  • Does this wording mean you are unsure, or that you are reasonably confident and being careful?
  • If something cannot be ruled out from this scan, what would rule it out?
  • Is there anything here you would act on today?

How often does this turn up?

No evidence of is one of the most frequent constructions in radiology reporting, and it is more carefully chosen than it looks. It means this examination did not show the thing being asked about. It does not mean the thing is definitely absent — it means the scan did not find it, which is a slightly weaker and more honest claim.

Does it mean something is wrong?

In practice this is good news, and the caution in the wording is about the test rather than about doubt. Every imaging test has a threshold below which it cannot see, and a sensitive test finding nothing is close to ruling something out while a less sensitive one is not. A chest X-ray showing no evidence of a small nodule means considerably less than a CT saying the same thing, and radiologists choose the phrasing knowing which tool they used.

What to do with it

Usually nothing further, because the question was answered. Where a negative result matters a great deal and the test used was not the most sensitive available, the report may recommend a better one. If your symptoms continue despite a negative scan, that is worth pursuing rather than treating the report as closing the question — imaging shows structure, and many real conditions leave no structural trace.

Frequently asked questions

Does no evidence of mean it is definitely not there?
It means this scan did not find it, which for a sensitive test is nearly the same thing and for a less sensitive one is not. Radiologists phrase it this way deliberately, because a test can only report what it is capable of seeing.
Why not just say normal?
Because the phrase answers one specific question rather than declaring everything fine. No evidence of fracture says nothing about the soft tissues, and being precise about what was and was not addressed is more useful than a blanket statement.
My scan was negative but I still have symptoms. What now?
That is common and not a contradiction. Imaging shows structure, and pain, inflammation, nerve irritation and much early disease can leave no structural trace. A negative scan rules out some causes; it does not rule out your symptoms.

Careful and hedged wording

Where this word comes up

Still worried about what your report says?

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Read Your Scan is informational only — not a medical diagnosis, and not a substitute for a licensed radiologist or your doctor. If you have urgent symptoms, seek care.