What You Need to Know
Lung cancer begins when abnormal cells in the lungs grow out
of control and may spread to other parts of the body. It is one of the most
commonly diagnosed cancers worldwide and remains a leading cause of
cancer-related death, which is why early detection is so important.
In some countries, lung cancer screening is available for
people at higher risk, particularly adults aged 50 and over with a significant
history of smoking. Screening uses a low-dose CT scan to create detailed images
of the lungs and can detect cancer before symptoms appear. Research shows that
screening high-risk individuals can significantly reduce deaths from lung
cancer because cancers are found at an earlier, more treatable stage.
While smoking is the main risk factor, lung cancer can also
affect people who have never smoked. Exposure to second-hand smoke, air
pollution, radon gas, or certain workplace chemicals can increase risk.
Maintaining regular health check-ups and reporting new or unusual symptoms
promptly can support earlier diagnosis and better outcomes.
Screening is not a substitute for quitting smoking, but it
can be an important additional step in protecting your health. If you currently
smoke or have smoked in the past, speak with your doctor about your individual
risk and whether screening is available and appropriate where you live. Even in
countries without formal screening programs, being aware of symptoms and
seeking medical advice early can improve outcomes.
Resources:
For international information about lung cancer prevention,
screening and treatment, visit the World Health Organization at who.int
or the International Agency for Research on Cancer at iarc.who.int.
If you would like support to quit smoking, speak with your
healthcare provider or visit your national quit service for free advice and
support.
Book an appointment with your GP if you experience any of
these symptoms:
- A cough that does not go away
- Coughing up blood
- Being short of breath for no
reason - Getting very tired or losing
weight - Ache or pain when you breathe or
cough - Chest or shoulder pain that does
not go away
