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Do you mean most would recover by them self?

edit: Ah ok. Risk of over-treatment by broad scanning? "Active surveillance aims to avoid unnecessary treatment of harmless cancers while still providing timely treatment for those who need it." according to NHS.

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No, you don't recover. Many men will get prostate cancer when they're old, but they'll most likely die from something else before that one becomes an issue.

But if we do scan and test and screen, a lot of men will find out they have it, become anxious about it and will want to do something about it, which leads to a lot of unnecessary treatments that decreases people's quality of life and wouldn't extend their lifespan anyway.

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