New Report Reveals Seven Million Cancers are Preventable Annually

Wed Feb 04 2026 03:37:05 GMT+0200 (Eastern European Standard Time)

A landmark study by WHO indicates that nearly 40% of global cancer cases are linked to avoidable factors, offering a significant opportunity for health improvements.

According to a comprehensive survey by WHO researchers, approximately seven million cancer cases each year could be prevented through lifestyle changes, vaccination, and reduced exposure to environmental contaminants. The report highlights key contributors like infections, tobacco use, and obesity, indicating nearly 40% of cancers can be avoided. This new analysis aims to encourage health policy adjustments worldwide, emphasizing the substantial potential for cancer reduction through proactive measures.

A groundbreaking report from World Health Organization (WHO) scientists indicates that approximately seven million cancer cases worldwide could be prevented each year. This represents nearly 40% of all cancer occurrences attributed to preventable factors such as infections, lifestyle choices, and environmental pollutants.

Notably, the analysis reveals that cervical cancers, often caused by human papilloma virus (HPV), and other forms related to tobacco smoke are significant contributors to this figure. The researchers suggest there is a profound opportunity to eliminate or mitigate several cancer risks with appropriate public health strategies and interventions.

Dr. Isabelle Soerjomataram, a researcher involved in the study, noted, Nearly four in ten cancers can be prevented, which is a substantial number. The International Agency for Research on Cancer evaluated thirty known risk factors and found specific behaviors leading to increased cancer risks, particularly smoking, obesity, and exposure to UV radiation.

The investigation highlighted major preventable causes for cancer cases globally, attributing smoking to 3.3 million cancer cases, infections to 2.3 million, and alcohol use to 700,000. Interestingly, while some cancers are inevitable due to genetic factors or DNA damage accumulated over time, the potential for prevention remains significant.

The report emphasizes a marked gender disparity in preventability, showing 45% of cancer cases in men could be avoided compared to 30% in women—this discrepancy largely correlates with differing rates of smoking.

“This study combines data on infectious and lifestyle-related risks for the first time, revealing invaluable insights for policymakers,” added Soerjomataram. The findings underscore the necessity for tailored public health strategies to tackle these preventable cancers effectively.

As countries implement measures such as smoking cessation programs and HPV vaccinations, the potential to drastically lower cancer incidence globally stands as a pivotal goal for international health organizations.