Smoking
Smoking is the leading cause of lung cancer. Cigarette smoke contains thousands of harmful chemicals that can damage the cells in the lungs.
Secondhand Smoke
Exposure to secondhand smoke can also increase the risk of developing lung cancer. Non-smokers who are frequently exposed to secondhand smoke have a higher risk of lung cancer.
Radon Gas
Radon is a radioactive gas that can seep into homes through cracks in the foundation. Prolonged exposure to radon gas can elevate the risk of lung cancer.
Occupational Exposure
Certain occupations, such as asbestos mining or construction work, involve exposure to carcinogens that can increase the likelihood of developing lung cancer. Workers in industries with high levels of asbestos, arsenic, or other toxins are at a higher risk of lung cancer.
Family History
Individuals with a family history of lung cancer have a higher genetic predisposition to the disease. Having a close relative, such as a parent or sibling, who has had lung cancer can elevate the risk for other family members.
Air Pollution
Exposure to high levels of air pollution, particularly in urban areas, can increase the risk of lung cancer. Pollutants in the air, such as particulate matter and diesel exhaust, can contribute to lung cancer development.