Coughs sometimes point to serious conditions such as lung cancer. Caused primarily by smoking, these coughs usually stick around and get worse over time. Bleeding during coughing, chest pain, fatigue and weakness are also symptoms of this disease, but it’s difficult to diagnose lung cancer on these symptoms alone. Doctors usually use biopsies and lung imaging tests to confirm it. Treatments for this disease include radiation therapy, surgery, chemotherapy and medicines that specifically target the cancer cells. Further, treatment and effectiveness vary based on the cancer’s stage.

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