A cancer that begins in the lungs and most often occurs in people who smoke.
Two major types of lung cancer are non-small cell lung cancer and small cell lung cancer. Causes of lung cancer include smoking, secondhand smoke, exposure to certain toxins, and family history.
Symptoms include cough (often with blood), chest pain, wheezing, and weight loss. These symptoms often don’t appear until the cancer is advanced.
Treatments may include surgery alone, but also might include chemotherapy, radiation, or a combination of these.