Risk Factors of Lung Cancer

At least 80% of lung cancers are believed to be caused from smoking. Second hand smoke is also considered a risk factor and increases a person’s chance of getting lung cancer by 30%. While smoking is a common cause, there are other risk factors associated with lung cancer. Having a risk factor doesn’t mean you will get lung cancer, but it may help you decide if you need to discuss your lung cancer screening eligibility, or your chances of getting lung cancer, with your healthcare provider. Risks associated with lung cancer include: