When most people think of lung cancer, they immediately associate it with smoking. While tobacco use remains the leading cause of lung cancer, a significant number of non-smokers are diagnosed with this disease each year. Understanding the various risk factors and causes can help raise awareness and promote early detection among all populations.
Approximately 10-20% of lung cancer cases occur in people who have never smoked or have smoked fewer than 100 cigarettes in their lifetime. These statistics highlight an important reality: lung cancer does not discriminate based on smoking history alone. Multiple factors contribute to lung cancer development, and recognizing these risk factors is essential for prevention and early intervention.