If your parents, brothers or sisters have had lung cancer, you are slightly more likely to get the disease than people with no family history.¹

Researchers think this is partly due to your genes (the material in your cells that is inherited from your parents and controls how the cells grow and behave).

This information is for educational use only, and is not a substitute for prompt professional medical advice. Readers should always consult a physician or other professional for advice and treatment. ©BMJ Publishing Group Limited 2008. All rights reserved.