A clearer view of your health, before symptoms appear

Preologi brings the latest advances in proactive health screening and early detection directly to you. Designed to identify health concerns earlier, so you can make informed decisions sooner. From choosing the right screening to understanding your results, our clinical team is with you at every step.

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The Galleri® multi-cancer early detection blood test

A single blood test that can screen for a cancer signal across more than 50 types of cancer, often before symptoms appear. Every test is clinician-led, with clear guidance before you test and support in understanding your results.

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More than a PSA test

For years, PSA has been the main blood test used to assess prostate cancer risk – but it has real limitations. PSA is produced by healthy as well as cancerous prostate tissue, and can be raised by benign enlargement, inflammation and other non-cancerous conditions. At the same time, some important cancers occur without a markedly raised PSA. Stockholm3 is different.

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See risk before it becomes an event

Much of the disease that leads to heart attacks builds silently, over years, before any symptoms appear. Understanding not just whether your arteries are narrowed, but how much plaque is present, what it is made of, and whether it is inflamed, means risk can be identified and managed earlier – informing decisions about lifestyle, treatment and monitoring well before an event.

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Ann’s story: cancer caught before any symptoms

In her seventies and feeling well, Ann joined the NHS-Galleri trial to help others — and it flagged a bowel cancer she never knew was there.

Ann had always kept up with her health checks, and a routine NHS bowel screening test had recently come back normal. She felt well and had no symptoms when she joined the NHS-Galleri trial in 2022 — mainly to help the research study. Her Galleri® test detected a cancer signal. Further investigations confirmed Stage III bowel cancer. Today, her follow-up scans and blood tests are clear.

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UK first.

The first authorised provider of the Galleri® test in the UK

Clinician-led.

Every test is supervised and explained by qualified clinicians

Simple access.

A clear process and straightforward appointments at Preologi partner clinics and also at home

Clear results.

Your results explained, with practical next steps

Support throughout.

Clinical guidance at every stage, whatever your result

Advanced health screening led by clinicians

Preologi combines the latest breakthroughs in proactive health screening with clinician-led guidance – giving you clear information about your health and the expert support to understand your results

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A simple, supported journey

Find the right screening

Explore your options and choose the screening most relevant to you, or ask our team to guide you.

Suitability Check

Our clinical team will confirm the most appropriate screening for you.

Your appointment

The process and any preparation required are explained clearly in advance. Some tests can be done at home.

Screening and analysis

Your blood sample or assessment is completed and analysed by the relevant specialist laboratory or clinical partner.

Understand your results

A clinician explains your results, answers your questions and talks you through any recommended next steps.

Choose a screening

Health screening science and Preologi news

The latest medical research, advancements in screening technology, practical health information, patient experiences and latest updates from Preologi.

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Patient stories

Roger’s story: pancreatic cancer, caught in time

21 Oct 2026

Roger felt healthy and low-risk. After reading about the test, he sought it out — and it caught a pancreatic cancer early, before symptoms.

Articles

Executive health screening: a more advanced approach to cancer and heart disease

21 Oct 2026

Executive health screening that looks beyond risk scores – with CT coronary angiography and the Galleri® cancer test, for leaders and the wider workforce.

Articles

Annual blood tests: what a comprehensive check covers – and why tracking results matters

15 Oct 2026

Many conditions develop silently. See what a comprehensive annual blood test checks – from ApoB to HbA1c – and why tracking your results each year matters.