Can a persistent cough be a symptom of lung cancer?

Yes, a persistent cough can be a symptom of lung cancer.1

Because lung cancer can involve different types of tumors and locations within the lung, the initial symptoms experienced by a patient can vary significantly. A persistent cough is among the potential early indicators, alongside other signs such as blood-stained sputum, shortness of breath, or pneumonia that does not fully resolve with antibiotic treatment.1

It is important to note that symptoms of lung disease are often variable and nonspecific, especially in the early stages. For individuals who already have chronic conditions like bronchitis, a cough may have been present for years, potentially masking new developments. Because these symptoms can be associated with various conditions, medical evaluation—including physical and radiographic examination—is essential for an accurate diagnosis.21