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Galleri multi-cancer blood test - with honest evidence, not hype.

A single blood test analysing methylation patterns in cell-free DNA. Marketed as an early-detection tool for more than 50 cancer types.

A stethoscope on a clinical desk

Indicative pricing

What a private Galleri test costs in the UK.

Indicative ranges across UK blood test units.

In short

£950, result in 2–3 weeks.

Procedure Indicative range
Galleri test with pre- and post-test consultation £950
Galleri test only (existing patient) £850
Follow-up CT chest, abdomen, pelvis £500–£900
Follow-up MRI (single region) £450–£900
Oncology consultation if signal detected £300–£500
Consultation only (no test) £200–£400

Price includes the test, a pre-test consultation, and a result-review call. Any downstream imaging or biopsy is quoted separately.

The problem

Galleri is promising - but evidence is still evolving.

The NHS-Galleri trial is running through 2026, with mortality outcome data expected later. The test detects a cancer signal in a small proportion of asymptomatic people, with modest overall sensitivity and a reported specificity around 99.5%.

  • Not a replacement for screening

    Mammography, cervical screening, colonoscopy and lung CT remain the mainstays for breast, cervix, colon and lung cancer.

  • Sensitivity varies by cancer and stage

    Higher for symptomatic and later-stage disease; lower for early-stage cancers. A negative test does not rule out cancer.

When it helps

When Galleri might make sense.

Who tends to consider Galleri - and where standard screening comes first.

  • Adults over 50 with a screening interest

    Most current data is in this age group; performance improves with age.

  • Family history of hard-to-screen cancers

    Pancreatic, ovarian, oesophageal - cancers with no easy screening test.

  • Long-term smokers already on lung CT

    Adds a broader look beyond the lung; does not replace CT.

  • BRCA/Lynch carriers - as an add-on

    Adjunct only - never a replacement for surveillance mammograms, colonoscopy or MRI.

  • Prior cancer survivors

    Discuss with your oncology team first - surveillance CT and MRI often already cover the ground.

  • Peace-of-mind screening

    Legitimate - as long as the trade-offs (false positives, cost, downstream imaging) are clear.

  • Cancer survivors in remission

    Some use Galleri to broaden surveillance; discuss with your oncologist.

  • Red flag: symptoms already present

    Weight loss, blood in stool, breast lump, persistent cough - see your GP for targeted work-up, not a Galleri test.

Procedure options

Options alongside a blood-based test.

How Galleri sits next to standard screening.

  • Galleri annually or biennially

    Repeat interval is not settled - annual is common in current commercial use.

  • Full-body MRI as a complement

    Different modality - some prefer imaging over blood for whole-body screening.

  • NHS bowel and breast screening

    FIT, colonoscopy, mammography - always in parallel.

  • Low-dose lung CT for smokers

    Standard screening for eligible smokers regardless of Galleri.

  • Coronary calcium score

    Different question entirely - cardiovascular, not cancer.

  • Genetic testing

    BRCA/Lynch/panel testing informs baseline risk and screening strategy.

  • Tumour marker panels

    CA-125, CEA, PSA - condition-specific, not multi-cancer.

  • Circulating tumour DNA (ctDNA) monitoring

    For people already treated for cancer - different technology, different question.

Safety and recovery

What to expect afterwards - honestly.

The safety profile is well understood. What matters is choosing the right test, and reading the report honestly.

  • A blood test is safe

    Two 10 mL tubes - venepuncture-level risk only.

  • False positives

    Specificity around 99.5% - but in a large screened population, false alarms do occur.

  • False negatives

    Sensitivity varies by cancer and stage. A negative test does not rule out cancer.

  • Downstream workload

    A signal detected result triggers CT/MRI - anxiety and cost are real.

  • Not covered by insurance

    UK private medical insurers do not currently cover Galleri as screening.

  • Trial data still emerging

    NHS-Galleri trial reports mortality outcomes later this decade.

  • Never replaces standard screening

    Mammography, cervical, colonoscopy and lung CT remain essential.

  • Best in the right person

    A pre-test consultation confirms it fits your situation and preferences.

  • When to escalate

    Symptoms of possible cancer trump any test - see your GP for targeted work-up.

Reading your operation note

Your operation note in four parts. Read the last one first.

Whichever centre does the scan, the report keeps to the same shape.

A UK consultant reviewing operation notes

A quiet reminder

Surgical language is precise and can read coldly - this page puts it in plain English.

If anything in your notes is unclear, ask your care team to talk you through the operation note and any histology before your review.

  1. 01 Header

    Result summary

    "No cancer signal detected" or "Cancer signal detected".

  2. 02 Signal

    Predicted tissue of origin

    If signal is detected, the report predicts one or two most likely origin tissues.

  3. 03 Interpretation

    What it does and doesn’t say

    A negative test does not rule out cancer; a positive test needs work-up before any diagnosis.

Recognised by major UK insurers

BupaAXA HealthVitalityAvivaWPACignaHealixBupaAXA HealthVitalityAvivaWPACignaHealixBupaAXA HealthVitalityAvivaWPACignaHealix

Galleri is not currently covered by UK private medical insurance. Any downstream imaging or specialist review after a positive result may be covered with a referral.

Frequently asked

Common questions about galleri multi-cancer blood test.

Quick answers on approach, recovery, risks and cost.

  • What is the Galleri test?

    A blood test analysing methylation patterns in circulating cell-free DNA. Marketed for early detection of a signal from more than 50 cancer types and to predict the likely tissue of origin.

  • Does the Galleri test replace mammograms or colonoscopies?

    No. Organ-specific screening - mammography, cervical, colonoscopy, low-dose lung CT - remains the mainstay. Galleri is an adjunct, not a replacement.

  • How much does the Galleri test cost in the UK?

    Any downstream imaging or specialist referral is quoted separately.

  • What happens if the test detects a cancer signal?

    The report predicts a likely tissue of origin. Most signals do not turn out to be cancer, so calm work-up is essential.

  • Is Galleri available on the NHS?

    Not routinely. The NHS-Galleri trial is running through 2026 with mortality outcomes expected later - a wider NHS rollout depends on those results.

  • Is the Galleri test covered by UK insurance?

    Not currently. It’s a self-pay decision.

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