WHO/IARC Global Cancer Prevention Study
Analysis based on 65 articles · First reported Feb 03, 2026 · Last updated Feb 05, 2026
The study's findings highlight the significant potential for reducing healthcare costs and improving public health through targeted prevention strategies. This could lead to increased investment in public health initiatives, vaccination programs, and regulations on tobacco and alcohol, potentially impacting pharmaceutical companies developing cancer treatments and diagnostic tools.
A new global analysis by the World Health Organization and its International===International Agency for Research on Cancer, published in Nature Medicine, reveals that nearly four out of ten cancer cases worldwide (approximately 7.1 million in 2022) are linked to preventable causes. The study, drawing on data from 185 countries and 36 cancer types, identifies tobacco (15%), infections (10%), and alcohol consumption (3%) as the leading preventable causes. Lung, stomach, and cervical cancers account for almost half of all preventable cases. The analysis also highlights significant differences in preventable cancer burdens between men and women, and across various regions, reflecting diverse exposures to risk factors and socioeconomic development. Key authors André Ilbawi and Isabelle Soerjomataram emphasized the study's role in providing precise information for prevention. The findings call for context-specific prevention strategies, including strong tobacco control, alcohol regulation, vaccination against HPV and hepatitis B, improved air quality, safer workplaces, and healthier lifestyles. Entities like the NCD Alliance, Cancer Research UK, Alcohol Change UK, and Melanoma Focus also contributed insights and data related to preventable cancer causes.
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