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A member asked:
I quit smoking 20 years ago are my lungs still damaged?
3 doctors weighed in across 2 answers
Smoking: Risk of lung cancer from smoking returns to normal after 10 years of not smoking.
Answered 8/2/2019
4.9k views
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It depends: It is great that you quit and have stayed abstinent for 20 years. The cells in your lungs are all new ones after 7 years of not smoking. However, if there was any scarring, those cells will not be replaced with healthy ones.
Answered 4/13/2020
4.9k views
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