The short answer
"No evidence of disease" (NED) means that, with the tests used, doctors can't detect any cancer at this time. It's good news and often a goal of treatment. It isn't the same as "cured," because current tests can't rule out every last cell — which is why follow-up continues. Many people live for years, sometimes for good, in an NED state.
NED means no cancer can be detected with current tests — a hopeful result.
It is not identical to "cured"; tests can't guarantee zero cancer cells remain.
Follow-up appointments and scans continue to watch for any return.
NED is closely related to "complete remission."
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The full explanation.
Where you'll see this phrase
In scan or visit summaries after treatment: "no evidence of disease," "NED," or "no evidence of recurrent or metastatic disease." A closely related term is complete response or complete remission.
What it means in plain language
NED means the tools doctors used — scans, exams, blood tests — don't show any cancer right now. It's often exactly what treatment aims for, and it's a genuinely hopeful milestone.
Why it's not the same as "cured"
No test can find a single hidden cell. So "no evidence of disease" is an honest statement about what can be seen today, not a guarantee about the future. Over time, if cancer stays undetectable, the picture can become what doctors are comfortable calling a cure — but that confidence builds with time.
What it does not mean
- NED does not mean follow-up ends. Monitoring continues, usually on a schedule your team sets.
- It does not mean you did anything wrong if cancer later returns — recurrence reflects biology, not effort.
Living with NED
Many people find NED brings both relief and anxiety, especially around scan times. That's common. If fear of recurrence is weighing on you, there are practical ways to cope and people who can help.
Words to know
Tap any term to see what it means.
Common questions
▸Is NED the same as being cured?
Not exactly. 'Cured' means the cancer is gone and won't come back, which can only be said with confidence after enough time. NED means nothing is detectable now. Many people move from NED to what's effectively a cure over time.
▸If I'm NED, why do I still need scans?
Because no test can detect a single cell. Follow-up catches any return early, when there are usually more options. Your team sets the schedule based on your cancer.
Questions to ask your doctor
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Your next step
Plain-language definitions for the words on your report.
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