How can you get lung cancer not smoking?

While smoking is the leading cause of lung cancer, it is possible to develop lung cancer without ever smoking. Here are some risk factors for lung cancer in non-smokers:

1. Exposure to secondhand smoke: Inhaling secondhand smoke, the smoke exhaled by smokers or emitted from the burning end of a cigarette, cigar or pipe, can increase the risk of lung cancer.

2. Radon gas exposure: Radon is a radioactive gas that can cause lung cancer. It is found naturally in the ground and can seep into homes and other buildings through cracks in the foundation. Radon is the second leading cause of lung cancer in the United States.

3. Asbestos exposure: Asbestos is a mineral fiber that was once commonly used in insulation, fireproofing, and other building materials. Asbestos fibers can be released into the air and inhaled, leading to lung cancer.

4. Air pollution: Exposure to certain air pollutants, such as particulate matter, ozone, and diesel exhaust, can increase the risk of lung cancer. Air pollution is a major problem in many cities and industrial areas.

5. Genetic factors: Some people may have a genetic predisposition to lung cancer. Certain genetic mutations can affect the development and growth of lung cancer cells.

6. Lung diseases: Chronic obstructive pulmonary disease (COPD) and other lung diseases can increase the risk of lung cancer. COPD is a group of lung diseases that includes emphysema, bronchitis, and asthma.

7. Radiation therapy: People who have received radiation therapy to the chest for other types of cancer may have an increased risk of developing lung cancer.

It is important to note that even though these factors can increase the risk of lung cancer, not all people exposed to these factors will develop the disease. Living a healthy lifestyle, avoiding known risk factors, and getting regular check-ups can help reduce the risk of lung cancer.