Up to one-fourth of all people with lung cancer may have no symptoms when the cancer is diagnosed. These cancers usually are identified incidentally when a chest X-ray is performed for another reason. The majority of people, however, do develop symptoms. These symptoms can include:

  • breathing trouble, such as shortness of breath
  • constant chest pain
  • coughing up blood
  • a hoarse voice
  • frequent lung infections such as pneumonia
  • feeling very tired all the time
  • weight loss with no known cause

In many cases, these symptoms are not due to cancer but are the result of other health problems can cause some of these symptoms. Anyone with such symptoms should see a doctor to be diagnosed and treated as early as possible. The survival rate from lung cancer is better the earlier it is caught.