01 · Overview

Who Gets Lung Cancer?

Tobacco is the leading cause — but anyone can be affected, including people who have never smoked.

Tobacco & Smoking

~85%

Radon Gas

~12%

Secondhand Smoke

~7%

Occupational Exposure

~5%

Other / Genetics

~3%

* Approximate — many cases involve multiple overlapping factors

American Cancer Society, Cancer Facts & Figures 2024; CDC, NCHS

Educational use only · Not a medical device