Why Non-Smokers Develop Lung Cancer

Adenocarcinoma of the lung, which is a type of cancer originating in the mucus-producing glandular cells, accounts for approximately 40% of lung cancer cases and 50-60% of cases among non-smokers. The condition is not limited to smokers; several factors such as passive smoking, radon gas, air pollution, genetics, and aging contribute to increased risk. In the early stages, clear symptoms often do not appear, but as the disease progresses, symptoms may include a persistent cough, shortness of breath, cough with blood, chest or shoulder pain, and weight loss. Uncommon signs can also emerge, such as facial swelling or changes in finger shape. It is advised to see a doctor if symptoms persist for more than three weeks, and raising awareness about environmental risk factors like air pollution and radon is essential to reduce the incidence.