End stage (stage 4) lung cancer means the cancer has spread from the lungs to other parts of the body. Once the cancer has spread, it is very difficult to cure. Chemotherapy and other treatments can slow the disease and help people live longer, but do not cure the disease. Below are some frequently asked questions about the final stages of lung cancer.

Lung cancer metastasizes to bone causing pain, negatively affecting patients' daily activities. At this stage, the treatments only help the disease to be in remission, not able to completely destroy the cancer cells.