Liver cancer surveillance (Hepatocellular carcinoma (HCC) surveillance)
A regular check, usually a liver ultrasound (sometimes with a blood test) every six months, to try to catch liver cancer early in people whose liver disease puts them at higher risk.
✓ Medically reviewed by a GMC-registered consultant · last reviewed September 2026 · next review September 2027 · how we review
In short
- It is a repeated check (usually a 6-monthly ultrasound, sometimes with an AFP blood test) to try to find liver cancer early in higher-risk people.
- It cannot catch every cancer: ultrasound can miss small tumours and may also flag harmless or uncertain findings that need more scans.
- It only helps if you attend every six months, for as long as you remain at risk.
- An abnormal result is not a diagnosis. It usually means a more detailed CT or MRI scan and review by a liver cancer team.
A plain-English summary. The detail — including risks and recovery — is below.
At a glance
A general guide. Your specialist will give you advice for your situation.
Can find some liver cancers while they are small and more treatable
People at only average risk of liver cancer, for whom surveillance causes more harm (false alarms, anxiety) than benefit.
Usually not painful and quick. You may feel mild pressure from the probe and a little cool gel. You can usually eat and drive straight afterwards.
A clear recall system so you are reliably booked every six months.
Usually not painful and quick. You may feel mild pressure from the probe and a little cool gel. You can usually...
If a blood test was taken, you may have a small bruise. There are no activity restrictions and you can return to...
The scan and any blood result are reviewed and reported. Ask how and when you will be told the result, and who to...
You are booked for a more detailed CT or MRI scan, usually within a short, defined timeframe, and your case is...
What is liver cancer (HCC) surveillance?
Liver cancer surveillance is a regular check for people whose liver disease makes liver cancer more likely. The most common cancer it looks for is hepatocellular carcinoma (HCC), which can grow in a scarred or damaged liver. Most often the check is a liver ultrasound scan every six months, sometimes with a blood test called alpha-fetoprotein (AFP).
The idea is to find a cancer while it is small and easier to treat, rather than waiting for symptoms. It is not a one-off test. It is an ongoing programme that only helps if you keep attending every six months.
Surveillance does not stop liver cancer happening, and it cannot promise to catch every cancer. Ultrasound can miss small tumours, and the blood test on its own is not reliable. It is a way of improving the odds of early detection, not a guarantee.
It is offered to people at higher risk, such as those with cirrhosis or certain hepatitis B or hepatitis C situations. It is not the right test for people at average risk, and it is not used for people who would be too unwell to have liver cancer treatment.
Types, options & approaches
There may be different ways to do this. The right approach depends on the clinical question and your circumstances.
Ultrasound vs the CT/MRI recall scan
| Feature | 6-monthly ultrasound | CT or MRI (after an abnormal result) |
|---|---|---|
| Main purpose | Routine surveillance check | Look closely at something already found |
| Radiation | None | CT uses X-rays; MRI uses none |
| Contrast dye | Not used | Usually used (check kidney function and allergies) |
| Finds small tumours | Can miss them | Better at characterising a lesion |
| How often | Every 6 months | Only when needed |
Ultrasound is the routine check; CT or MRI is used to investigate anything the ultrasound or blood test raises. Your liver team decides which scan is right.
Preparing for your test
- Check whether you need to fast (some abdominal ultrasound appointments ask you not to eat for a few hours beforehand); the clinic will tell you.
- Bring a list of your medicines and any previous scan results or reports, especially earlier liver imaging.
- Tell the team if you might be pregnant, as this can affect later CT scanning.
- If a contrast scan (CT or MRI) is planned later, mention kidney problems, asthma, or any reaction to contrast dye.
- Keep a note of your hepatitis status and any past liver treatment, so the team has the full picture.
- Try to attend the same programme each time so your scans can be compared over time.
- Bring your reading glasses and any interpreter support you need to understand the result discussion.
What happens
For a surveillance ultrasound, you lie on a couch and a sonographer or radiologist moves a small probe with gel across the upper-right side of your tummy. It is usually not painful and usually takes 15 to 30 minutes. You can normally go home straight away and carry on as usual.
If a blood test is part of your programme, a small sample is taken from your arm for the AFP level, often on the same day.
The images and blood result are reviewed by a specialist. If everything looks stable, you are booked for your next check in about six months. If something new or uncertain is seen, you are recalled for a more detailed CT or MRI scan, and your case is usually discussed by a liver cancer multidisciplinary team (MDT) before any decisions are made.
Is this test right for me?
A good consultation should explore whether it's the right choice for you now — including reasons to wait or consider something else.
May not be suitable if…
- People at only average risk of liver cancer, for whom surveillance causes more harm (false alarms, anxiety) than benefit.
- People who would be too unwell to have any liver cancer treatment, where finding a cancer would not change what can be offered.
- People with very advanced (decompensated) cirrhosis who are not transplant candidates, where surveillance is generally not recommended.
- Anyone receiving end-of-life care, where surveillance is not appropriate.
Delay or rearrange if…
- You are acutely unwell or in hospital with an unrelated illness — surveillance can wait until you are stable.
- A planned contrast CT scan clashes with poor kidney function or a recent contrast reaction that needs review first.
- You may be pregnant and a CT scan is being considered, until this is discussed.
- Key previous scans or reports are missing and would help comparison.
Alternatives to discuss
- No surveillance, after an honest discussion of the risks and benefits, for people at low risk or who would not want or tolerate cancer treatment.
- CT or MRI as the surveillance test where ultrasound is technically very difficult to interpret.
- Focusing on treating the underlying liver disease (such as hepatitis) and reducing risk factors.
- A second specialist opinion if you are unsure whether surveillance is right for you.
Before you decide
Use this as a shared-decision checklist. The aim is not just “can this be done?”, but whether it is right for you, now, with the risks and alternatives clearly understood.
What matters most to me?
Think about symptoms, daily life, work, caring responsibilities, sport, fertility, travel, appearance and anxiety — the right choice depends on your priorities, not just the medical facts.
What are all my options?
Ask about waiting, monitoring, medicines, rehabilitation, a smaller or larger procedure, a different test, NHS referral, or a second opinion where that would help.
What would make me pause?
Active infection, pregnancy, unstable medical problems, smoking, medicines that increase bleeding, poor support at home, or feeling pressured are all reasons to slow down and get tailored advice.
What happens if I do nothing today?
For some problems, waiting is safe; for others, delay can make treatment harder. A good consultation should explain the trade-off in plain English.
Benefits
- Can find some liver cancers while they are small and more treatable
- May allow access to a wider range of treatments, including potentially curative ones, when cancer is caught early
- Gives a structured way to monitor a higher-risk liver over time
- Normal results, taken together over time, can offer some reassurance (though not a guarantee)
- Links you to a specialist team who can act quickly if something changes
Risks & complications
- Anxiety while waiting for each scan and its result
- Uncertain or indeterminate findings that need a repeat or more detailed scan
- Inconvenience of attending every six months, long term
- A scan that is technically limited (for example by body shape or bowel gas) and gives less clear information
- False alarms that lead to extra CT or MRI scans, and sometimes a biopsy, for something that turns out to be harmless
- Incidental findings elsewhere (such as in the kidneys or gallbladder) that prompt more tests
- A raised AFP with no cancer found, causing worry and further investigation
- A small tumour missed on ultrasound that is only found later (a false-negative result)
- Complications from a follow-up procedure prompted by surveillance, such as bleeding after a liver biopsy
- Reaction to contrast dye if a CT or MRI is needed
The two biggest issues to discuss are missed cancers (ultrasound is good but not perfect, especially for very small tumours) and false alarms that lead to more scans and worry. Ask your liver team how good your scans are likely to be in your case, what an abnormal result would mean, and how quickly you would be seen.
Published figures to discuss
Surveillance does not have a single success rate. Its value depends on how reliably ultrasound finds early cancers in a particular person, balanced against false alarms and the harms of follow-up tests. Ultrasound performs less well for small, early tumours and for people in whom the liver is hard to image. The figures below are cautious ranges from published reviews and should be discussed in your own context.
| Figure | Reported range | How to interpret it | Source / confidence |
|---|---|---|---|
| Sensitivity for any-stage liver cancer (ultrasound) | Reported around 84% in a pooled meta-analysis | Means most established cancers are seen, but some are still missed. | Surveillance imaging and AFP for HCC: a meta-analysis (PMC)pmc.ncbi.nlm.nih.govPublished figure |
| Sensitivity for early-stage liver cancer (ultrasound, with or without AFP) | Reported around 45–63% in pooled analyses | More than a third of early cancers can be missed by ultrasound, which is the main limitation. | Surveillance imaging and AFP for HCC: a meta-analysis (PMC)pmc.ncbi.nlm.nih.govPublished figure |
| False-positive or indeterminate findings leading to further tests | Vary widely by population and scan quality; not a single reliable figure | These cause extra CT/MRI scans, sometimes biopsy, and anxiety; ask your team how common this is locally. | Guide sourcesClinical context |
These are literature figures, not a personalised prediction. Your own risks and likely benefits depend on your circumstances, your health, and how your care is carried out and followed up.
What happens afterwards
There is no physical recovery from a surveillance ultrasound or blood test. The main thing afterwards is waiting for the result and knowing what the next step is.
- No physical after-effects from the ultrasound
- A small, short-lived bruise where blood was taken
- Feeling anxious around scan time, which many people describe
- A wait of days to a couple of weeks for the result
- Being booked straight back in for another check in six months
Aftercare
- Make sure you know the date of your next six-monthly check before you leave.
- Keep your contact details up to date with the clinic so recall letters and results reach you.
- Ask who to contact if you do not receive your result within the expected time.
- Keep doing the things that protect your liver, such as avoiding alcohol and keeping up any hepatitis treatment.
- Attend every appointment, even when you feel completely well, because surveillance only works if it is regular.
- Tell the team about new symptoms such as weight loss, tummy swelling, or jaundice rather than waiting for the next scan.
- Keep copies of your scan reports if you can, especially if you move between NHS and private care.
- Next scan date noted in your diary
- Clinic and results-line phone numbers saved
- Previous scan reports kept together
- Up-to-date medicine list
- Record of your hepatitis status and past liver treatment
- A plan for who chases the result if you hear nothing
⚠ Get urgent help if…
- New yellowing of the skin or eyes (jaundice)
- Swelling of the tummy or sudden weight gain from fluid
- Unexplained weight loss or loss of appetite
- New or worsening pain in the upper-right tummy
- Vomiting blood or passing black, tarry stools (seek urgent help)
- Confusion or marked drowsiness
- Any result letter or phone call asking you to come back sooner than planned — do attend
Who to contact: your clinician, clinic or test provider first (keep their number to hand). For urgent advice when you can't reach them, call NHS 111. In an emergency, call 999.
General guidance — it doesn't replace the specific advice your specialist gives you.
Results & realistic expectations
A normal surveillance result usually means no new suspicious lump was seen and, if measured, your AFP was not concerning. This is reassuring, but it does not prove there is no cancer, because small tumours can be missed and surveillance is not perfect. That is why it is repeated every six months.
An abnormal or uncertain result is not a diagnosis of cancer. It usually means a more detailed CT or MRI scan, and review by a liver cancer team, to work out what the finding is. Some findings turn out to be harmless, some need closer monitoring, and some lead to treatment.
A surveillance result only describes your liver at that moment. Because cancer can develop between scans, the result is only useful for about six months, which is why the check is repeated. Surveillance continues for as long as you remain at higher risk, often for many years. If your liver disease changes, or you become too unwell to have cancer treatment, your team may discuss stopping surveillance with you.
Related tests, treatments or support
Surveillance is usually part of wider liver care. The same appointments often include blood tests for liver function, checks on hepatitis treatment, monitoring for varices (swollen veins in the gullet), and management of any cirrhosis complications. Your liver specialist coordinates these so the picture is joined up.
Follow-up & long-term care
Most people are reviewed every six months for the scan, with results explained by letter, phone, or clinic. If a scan is abnormal, follow-up is faster, with a CT or MRI and a multidisciplinary team discussion. Make sure you know who is responsible for chasing and explaining your results, especially if you move between NHS and private care.
- Attend the ultrasound (and blood test, if used) every six months without gaps.
- Keep up any hepatitis B or C treatment and liver-protective measures.
- Keep contact details current so recall and results reach you.
- Tell the team promptly about new liver-related symptoms.
- Review with your specialist whether surveillance should continue if your health changes.
Repeat, follow-on and what comes next
- Uncertain findings often need a repeat or more detailed scan rather than an immediate answer.
- Some lesions are watched over several scans before anything is concluded.
- A normal result is always provisional, because the check is designed to be repeated.
Ask what happens if the result is unclear or needs repeating, and what is included if further tests or follow-up are needed.
What good aftercare looks like
- A clear recall system so you are reliably booked every six months.
- A named contact and a results process so you know who is responsible for your result.
- A defined, prompt pathway to CT or MRI and a liver cancer team if a scan is abnormal.
- Joined-up care with whoever treats your underlying liver disease.
- Honest, written information about what surveillance can and cannot do.
What affects the cost
Costs vary a great deal between people and providers, and we don't publish prices. What matters is understanding what drives the cost and making sure your quote is complete. The main things that affect it:
- Type of test used (ultrasound only, or ultrasound plus an AFP blood test)
- Whether a specialist radiologist reports the scan and how quickly
- Whether a follow-up CT or MRI with contrast is needed after an abnormal result
- Any follow-up consultation with a liver specialist to explain results
- Whether a biopsy or multidisciplinary team review is required
- How long surveillance continues, since it is repeated every six months
- The scan fee and whether AFP blood testing is included
- The reporting radiologist's fee and expected turnaround for results
- What a recall (CT or MRI) scan would cost if a finding needs investigating
- Any follow-up consultation fee to explain the result
- What happens, and what it costs, if a result is inconclusive
- Cancellation and rebooking policy
- How results are shared with you and your GP or liver team
On the NHS? Six-monthly surveillance is available on the NHS for people who meet the risk criteria; private testing may be used for speed, convenience, or a second opinion, but does not change who genuinely needs it.
You're entitled to your total cost in writing — including reports, follow-up and what happens if the result is inconclusive — before you decide.
Consent traps and marketing red flags
These are not small details. They are often where patients lose choice, time to reflect, or realistic expectations.
Consent traps
- Being told surveillance will 'catch' liver cancer, without explaining that small tumours can be missed.
- Not being warned about false alarms and the extra scans, biopsies, and worry they can cause.
- No clear plan for who explains results and who to contact if you hear nothing.
- Not discussing whether finding a cancer would actually change your treatment options.
- No mention of contrast risks if a CT or MRI recall scan is needed.
Marketing red flags
- Claims that a scan can 'rule out' liver cancer or guarantee an all-clear.
- Selling one-off liver scans as 'screening' to people at average risk who do not need it.
- Promising same-day reassurance without explaining the limits of ultrasound and AFP.
- Bundling expensive add-on scans without a clear medical reason.
Choosing a specialist safely
- Check the specialist is on the GMC Specialist Register for this area.
- Make sure they work at a CQC-registered service, and look for membership of the relevant Royal College or professional body.
- You're entitled to time to consider and to have your questions answered before you agree — the specialist who looks after you should explain it, not a salesperson.
- Be wary of pressure: time-limited offers or deposits taken before you've had time to think are red flags, not bargains.
- You're entitled to your total cost in writing — including any follow-up — before you decide.
Questions to ask your medical professional
Take this to your consultation. A good specialist will welcome every one of these.
- Why am I being offered surveillance, and how high is my risk?
- How good are my scans likely to be, given my body shape and liver scarring?
- What will happen, and how quickly, if my scan or blood test is abnormal?
- Who is responsible for telling me my result, and who should I contact if I hear nothing?
- What symptoms should make me seek help before my next scan?
- Are there circumstances in which we would stop surveillance?
- Are you on the GMC Specialist Register for this area, and which Royal College or professional body are you a member of?
- Will you be the specialist who carries out my test, and who looks after me afterwards?
- What are the risks for someone like me, and how often do your own patients have a problem or need it repeated or redone?
- What does a realistic result look like — and what can this test not achieve?
- What are my options, including waiting, doing nothing for now, or choosing a different approach?
- Can I have written information, results and aftercare instructions in a format I can use, including any accessibility or communication support I need?
- What is the total cost in writing, including any follow-ups, and how much time do I have to decide?
Frequently asked questions
Is liver cancer surveillance available on the NHS?
Does a normal scan mean I definitely do not have liver cancer?
Why every six months — could I have it less often?
What does the AFP blood test add?
What happens if the scan finds something?
Is the ultrasound uncomfortable or risky?
Will surveillance stop me getting liver cancer?
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How we made this page
Medically reviewed by a GMC-registered consultant. Written in plain English, checked against NHS, NICE, GMC and relevant Royal College / specialist-society guidance, and kept under review. No clinic paid to appear on this page, and we publish no pricing. This is general information to help you prepare — it is not a substitute for advice from your own clinician. How we review our guides →
Source hierarchy: UK regulator and NHS/NICE guidance first, then relevant Royal College or specialist-society guidance, then peer-reviewed evidence for procedure-specific figures where available.
Sources & standards: NHS England — Hepatocellular carcinoma surveillance: minimum standards NICE QS152 — Surveillance for hepatocellular carcinoma NICE NG50 — Cirrhosis in over 16s: assessment and management British Liver Trust — Liver cancer information Surveillance imaging and AFP for HCC: a meta-analysis (PMC) Benefits and harms of HCC surveillance in cirrhosis (PMC)
Reviews reflect patients' experience of care, not clinical outcomes. For procedure volumes and outcome data see PHIN.
Last medically reviewed 2026-09-21. Spotted something wrong or out of date? Report an error in this guide.
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