Few lung cancers are found in the early stages when treatment is most effective. When lung cancer is found before it has spread outside the lungs, about half of these people will live at least 5 more years.2 After lung cancer has spread outside the lungs, how long a person lives usually depends on how far the cancer has spread (the stage) by the time it is found.
Finding out that you have cancer can change your life. You may feel like your world has turned upside down and you have lost all control. Talking with family, friends, or a counselor can really help. Ask your doctor about support groups. Or call the American Cancer Society (1-800-227-2345) or visit its website at www.cancer.org.
Lung cancer that is caused by smoking can be prevented. So it is important to stop smoking-or to stop being around someone else's smoke.
Even if you have smoked a long time, quitting can lower your chances of getting cancer. If you already have lung cancer, quitting makes your treatment work better and can help you live longer.