What are all the symptoms of lung cancer?
In its early stages, lung cancer usually causes no noticeable symptoms. As it grows, it can affect the surrounding lung tissue, causing such symptoms as cough, blood-stained phlegm (sputum), breathlessness and chest pain. The cancer can also release substances that reduce appetite and cause weight loss with tiredness. Unless detected and treated early, lung cancer will eventually spread to other parts of the body, and this can cause further problems such as abnormal lumps, organ failure, and pain.