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Lung Cancer

Prevention of Lung Cancer

The best way to prevent lung cancer is to not start smoking and avoid second-hand tobacco smoke. Cigarette smoking is the major cause of lung cancer. Historically, 80-90 % of lung cancers have occurred in current or former smokers.

An additional step to avoid development of lung cancer is smoking cessation. The relative risk of developing lung cancer declines in former smokers to about twice that of those who never smoked after 20 years of not smoking. However, it remains high forever.

To learn more about how to quit smoking, please visit our Smoking and Tobacco health topic.

The information in this article is based on "LUNG CANCER: Battling the Number 1 Cancer Killer," presented on October 7, 2003 at the University of Cincinnati Mini Medical College, and was adapted for use on NetWellness with permission, 2004.

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Last Reviewed: Dec 06, 2006

John   Howington, MD John Howington, MD
College of Medicine
University of Cincinnati