Smoking is the major cause of lung cancer, however, some people develop lung cancer without smoking. Smoking causes up to 90% of lung cancer. It is unusual under the age of 40 and the risk increases substantially after the age of 50. The younger someone started smoking, the higher their risk of getting lung cancer. One in 10 smokers will develop lung cancer. Passive (environmental) tobacco smoke causes lung cancer but the risks are less than if you yourself smoke.

Symptoms

• A persistent cough

• Shortness of breath

• Coughing up blood-stained phlegm (sputum)

• Chest discomfort - this may be noticed as a dull ache or a sharp pain when you cough or take a deep breath

• Loss of appetite and loss of weight

Reduce your risks

• Stop smoking

For more cancer-related information and support, please visit the Hong Kong Cancer Fund website or contact Hong Kong Cancer Fund free enquiry hotline: (852) 3656 0800

Source: Hong Kong Cancer Fund