While smoking is the primary cause, other significant risk factors can include a family history among immediate relatives (parents, siblings, or children) and prolonged exposure to second-hand smoke. Environmental factors, such as long-term contact to chemical substances (like asbestos, radon), cooking oil fumes, and air pollution, also contribute significantly to the risk. Notably, there is a growing trend of lung cancer cases appearing in non-smokers.

Because risk levels are unique to every individual, high-risk groups should consult a doctor to discuss lung cancer screenings and regular check-ups. Early detection saves lives.