How lung cancer is diagnosed

Signs and symptoms of lung cancer

The most common symptoms of lung cancer are:

  • a cough for three weeks or more
  • a change in a cough you’ve had for a long time
  • a chest infection that doesn’t get better, or repeated chest infections
  • feeling breathless and wheezy for no reason
  • coughing up blood
  • chest or shoulder pain that doesn’t get better
  • a hoarse voice for three weeks or more.

Other possible symptoms are:

  • losing weight for no obvious reason
  • feeling extremely tired (fatigue)
  • the ends of fingers change shape – they may become larger or rounded (clubbing).

If you have any of these symptoms, it‘s important to have them checked by your GP. Some of these symptoms can be caused by other conditions or by smoking. Lung cancer is occasionally diagnosed by chance when a person is having tests for another condition. In this situation, the cancer is more likely to be at an early stage.