While anyone can get lung cancer, it has a very strong link with smoking. Cancer Research UK estimates that smoking is directly linked to 86% of lung cancers.
There are other environmental factors that can contribute to a higher risk of lung cancer, including air pollution, ionising radiation and certain substances found in the workplace, for example asbestos.
As with all cancers, we do not know what causes every case of lung cancer.
The best thing you can do to reduce your risk of this type of cancer is to stop smoking.
For information on NHS support available to stop smoking please click here.
There is no screening programme for this type of cancer. If you are worried about lung cancer please go and see your GP, particularly if you have any of the risk symptoms described above.