10 Symptoms of Non-Small Cell Lung Cancer

Frequent respiratory infections. Pneumonia or bronchitis that keeps coming back may be a sign of an underlying tumor. NSCLC can block or partially close an airway, allowing bacteria to grow and making it harder for antibiotics to reach the infection site. Patients may find themselves sick multiple times in a season, even with treatment.

When infections relapse despite proper therapy, it may point to cancer in the lungs.