Up to four in ten cancer cases worldwide could be prevented, according to a new global analysis from the World Health Organization (WHO) and its International Agency for Research on Cancer (IARC). The study examines 30 preventable causes, including tobacco, alcohol, high body mass index, physical inactivity, air pollution, ultraviolet radiation – and for the first time – nine cancer-causing infections. Three cancer types – lung, stomach and cervical cancer – accounted for nearly half of all preventable cancer cases in both men and women, globally.
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Results for World Cancer Day
Wednesday 4 February 2026
Geneva, Switzerland
