Lung Cancer Symptoms: What You Should Know

Medically Reviewed by Laura J. Martin, MD on November 09, 2019

Lung cancer usually has no symptoms in its early stages. When signs of the disease start to appear, they can include:

These problems usually happen because of blocked breathing passages or because the cancer has spread farther into the lung, nearby areas, or other parts of the body.

When to Call Your Doctor

If you have any of these symptoms of lung disease, especially an ongoing cough, blood-streaked mucus, wheezing, hoarseness, or a lung infection that keeps coming back, see your doctor. You’ll get a thorough checkup, and you may also get X-rays or other tests.

Go immediately to the emergency room if you have any of the following:

WebMD Medical Reference



National Cancer Institute. 

National Institutes of Health. 

Mayo Clinic: "Lung Cancer."

eMedicine: “Lung Cancer.”

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