Can Non-Smokers Get Lung Cancer?

Many people believe that lung cancer only occurs in smokers. However, in reality, people who have never smoked can also develop lung cancer. Although smoking is the major risk factor for lung cancer, there are other factors that may increase the risk, including environmental exposure, genetic factors, and certain lung diseases.

Risk Factors for Lung Cancer in Non-Smokers

Even if a person does not smoke, several factors may increase the risk of lung cancer.

• Secondhand Smoke. Long-term exposure to cigarette smoke from people nearby can increase the risk of lung cancer.
• Air Pollution. Air pollution, including fine particulate matter such as PM2.5, can affect lung health and increase the risk of respiratory diseases.
• Radon Gas. Radon is a naturally occurring gas that can be present in some environments. Long-term exposure to high levels of radon may increase the risk of lung cancer.
• Genetics or Family History. People with a family history of lung cancer may have a higher risk due to genetic factors.
• Certain Chronic Lung Diseases. Some chronic lung conditions may increase the risk of developing lung cancer.

Symptoms to Watch For

Early-stage lung cancer may not cause noticeable symptoms. However, if the following symptoms persist, medical evaluation is recommended:

• Persistent cough
• Coughing up blood
• Chest pain
• Shortness of breath or fatigue
• Unexplained weight loss

If these symptoms occur continuously, it is important to consult a doctor for proper diagnosis.