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Signs & Symptoms of Lung Cancer Print Friendly and PDF

Lung cancer usually does not cause symptoms when it first develops, but symptoms often become present after the tumor begins growing and each individual may experience symptoms differently. A cough is the most common symptom of lung cancer. Other symptoms include:

None of these symptoms is a sure sign of lung cancer. Only a doctor can tell whether a patient's symptoms are caused by cancer or by another problem. Consult your doctor for a diagnosis.

Risk Factors of Lung Cancer

Different cancers have different risk factors. Several risk factors make a person more likely to develop lung cancer. Current or prior Smoking is the leading cause of lung cancer, with about 80 percent of lung cancer deaths thought to be a result of smoking. Additional risk factors include: