Abstract
The aim of cancer screening is to identify pre-malignant conditions, which can be removed or treated, or earlier-stage disease, for which treatment is more likely to be curative, in non-symptomatic individuals. Currently, screening programmes are being consolidated for five cancer types (breast, prostate, cervical, colorectal and lung) and several other cancer types are the focus of specific initiatives. Cancer screening is at a point of potential major transformation owing to technological advances in detection. In this Review, we first recapitulate the general principles of cancer screening. We then provide a timely overview of the current screening practices for breast, cervical, colorectal, prostate and lung cancer, addressing major challenges and potential future changes in practice. We also discuss other malignancies for which screening initiatives might be worth considering. Finally, we highlight technological developments in cancer detection that might hold promise for screening an increasing number of cancers in the future, notably some that reflect unmet needs.
Key points
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The main aims of cancer screening are to identify precursor states that can be removed or treated, or to detect disease at an early stage when treatment is more likely to be curative.
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The screening intervention must reduce mortality and/or morbidity from the malignancy targeted.
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Population screening programmes for breast, prostate, cervical, colorectal and lung cancer are widely implemented worldwide owing to their demonstrated benefits in incidence and/or mortality.
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For a number of cancers, the evidence is not sufficiently compelling for population screening programmes to be set up; these include some cancers characterized by poor prognosis, such as oesophageal cancer.
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Cancer screening might undergo major changes in the near future, notably with the advent of artificial intelligence tools for early detection and multicancer early detection tests. The latter are showing some promise for the early detection of some cancers that currently have a poor prognosis.
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Acknowledgements
J.O. receives support from the Barts Charity (grant G-001522/MGU0461).
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S.W.D has occasionally been a consultant for Grail and Roche, both on methodological aspects. J.O. has occasionally been a consultant for Hardian Health.
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Duffy, S.W., Offman, J. A guide to cancer screening. Nat Rev Clin Oncol (2026). https://doi.org/10.1038/s41571-025-01112-z
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DOI: https://doi.org/10.1038/s41571-025-01112-z


