To determine whether lung cancer may be causing your respiratory symptoms, your health professional will evaluate your: Medical history, including your smoking history and any symptoms you have now. Exposure to environmental and work substances. Family hi
Radiation therapy is the use of high-energy X-rays to kill cancer cells and shrink tumors. Radiation may come from a machine outside the body (external radiation therapy) or from putting materials that produce radiation (radioisotopes) into the body.
Most lung cancer is caused by smoking. About 87% of lung cancers are related to smoking. Cancer-causing substances (carcinogens) in tobacco smoke damage lung cells. Over time, these damaged cells may develop into lung cancer.