Lung cancer screening can help detect signs of lung cancer at an earlier stage, often before symptoms develop. In the UK, screening is offered to people at higher risk as part of an NHS programme known as an NHS Lung Health Check.
Understanding how this process works, who it is for, and what to expect can help you decide whether screening is appropriate for you.
What Is Lung Cancer Screening?
Lung cancer screening in the UK is carried out using a low-dose CT scan. This type of scan uses a small amount of radiation to create detailed images of the lungs and can help detect cancer at an early stage.
Screening is usually offered as part of a Lung Health Check, which involves two main steps:
- Risk assessment
A healthcare professional will ask about your age, smoking history, and general health to assess your risk of lung cancer. - Low-dose CT scan (if eligible)
If you are considered at higher risk, you may be invited for a scan to look for early signs of lung cancer.
Why Is Lung Screening Important?
Lung cancer is one of the leading causes of cancer-related deaths in the UK. It is often diagnosed at a later stage because symptoms may not appear early on.
Screening can:
- Help detect lung cancer earlier in people at higher risk
- Increase the chance of successful treatment in some cases
- Identify changes in the lungs before symptoms develop
It is important to note that screening is not suitable for everyone and does have limitations, including the possibility of false positives or findings that require further investigation.
Who Is Eligible for Lung Screening in the UK?
Lung Health Checks are offered in many UK areas with rolled-out programmes.
You may be invited if you:
- They are aged between 55 and 74
- Currently smoke or have smoked in the past
Eligibility is based on risk, so not everyone will be offered a scan. If you are unsure, you can speak to your GP.
What Happens During a Lung Health Check?
If you are invited:
- You will first complete a risk assessment, often by phone or in person
- If eligible, you will be offered a low-dose CT scan
- The scan itself is quick, painless, and usually takes only a few minutes
No injections or special preparation are needed.
Benefits and Limitations
Potential Benefits
- Earlier detection of lung cancer in higher-risk individuals
- Improved treatment options if cancer is found early
- Reassurance if no significant abnormalities are detected
Limitations
- Not all cancers will be detected
- Some findings may require further tests but turn out not to be cancer
- Exposure to a small amount of radiation
A healthcare professional can help you weigh these factors based on your personal risk.
How to Access Lung Screening
You may be automatically invited if you are eligible based on your GP records.
If you have not received an invitation but believe you may be at higher risk, you can:
- Speak to your GP
- Check local NHS services in your area
- Ask about Lung Health Check availability
Access may vary depending on where you live, as the programme is still being expanded.
Supporting Your Lung Health
In addition to screening, there are important steps you can take to support your lung health:
- Stopping smoking is the most effective way to reduce your risk
- Avoiding exposure to harmful pollutants where possible
- Staying physically active
- Seeking medical advice for persistent respiratory symptoms
Final Thoughts
Lung cancer screening helps detect the disease earlier in people at higher risk, especially those with a history of smoking. It is not routine for everyone and should be based on individual risk.
If you think you may be eligible, the best way to take the next step is to speak to a GP or check your local NHS programme.
