Lung Cancer Risk Calculator
Assess lung cancer risk based on smoking history and exposure factors.
Lung Cancer Risk Assessment
Evaluate your lung cancer risk based on smoking history and exposure factors.
Frequently Asked Questions
Is lung cancer screening recommended?
Low-dose CT screening is recommended for high-risk individuals: age 50-80, current smokers or quit within 15 years, with 20+ pack-year history. Annual screening reduces mortality in eligible people. Ask your doctor if you qualify.
Can lung cancer occur in non-smokers?
Yes. About 15% of lung cancer cases occur in never-smokers. Risk factors for non-smokers include: secondhand smoke, radon, asbestos, pollution exposure, family history, and certain genetic factors. Non-smokers can get lung cancer at any age.
What are early symptoms of lung cancer?
Early symptoms may include: persistent cough (lasting >3 weeks), coughing up blood, chest pain, shortness of breath, wheezing, hoarseness, or repeated pneumonia. Many early cases have no symptoms, which is why screening matters for high-risk individuals.
How much does smoking increase lung cancer risk?
Smokers have 15-30x higher risk than non-smokers, depending on cigarette-years. Risk decreases after quitting: 10 years after quitting, risk drops to 3-4x higher than non-smokers. Any smoking significantly increases lung cancer risk.
Is secondhand smoke exposure dangerous?
Yes, significantly. Secondhand smoke exposure increases lung cancer risk by 20-30% even in never-smokers. It damages lungs and blood vessels similarly to smoking. Long-term secondhand smoke exposure is a major modifiable risk factor.
Can radon cause lung cancer?
Yes, radon is the second-leading cause of lung cancer after smoking. Radon accumulates in basements of homes, especially in certain groundwater areas. Test your home for radon; levels above 4 pCi/L should be remediated by professionals.