Who Is at Risk for Lung Cancer?

Smoking, including cigar and pipe smoking, is the most common cause of lung cancer. The more a person smokes and the longer he or she smokes, the higher their risk of developing lung cancer. 

Non-smokers are also at risk if they are exposed to second hand smoke. 

Exposure to radon, a radioactive gas, and exposure to asbestos are other risk factors for lung cancer.