Lung cancer is the third most common type of the disease in the UK, and is more likely as you get older.
According to Cancer Research UK, there are around 48,500 new lung cancer cases in the UK every year, that's more than 130 every day.
Coughing up blood is rarely a sign of serious illness. However, in older people, particularly smokers, it's a cause for concern. The medical term for coughing up blood is hemoptysis, according to the NHS.
