Understanding lung cancer risk factors empowers individuals to take preventive steps and seek early screening. Key risks include:
- Tobacco Smoking: Main cause (up to 85% of cases). Both active smoking and secondhand smoke increase risk.
- Environmental Exposures: Radon gas, asbestos, air pollution, diesel exhaust, or industrial chemicals.
- Family History & Genetics: A family history of lung cancer or mutations like EGFR or KRAS can increase susceptibility.
- Chronic Lung Conditions: COPD, pulmonary fibrosis, or chronic inflammation heighten risk.
- Radiation Exposure: Prior chest radiation may contribute to development.
- Lifestyle Factors: Poor diet, low fruit/vegetable intake, and sedentary habits weaken lung health.
- Occupational Hazards: Mining, construction, or manufacturing jobs with silica, coal dust, or carcinogens.