Cancer diagnoses worldwide are projected to surge to 35 million annually by 2050, a nearly 70% increase from the 20.6 million cases recorded in 2024, according to a new report from the World Health Organization (WHO).
Despite advancements in areas like reduced tobacco use, which is linked to 16 types of cancer, the disease remains a primary cause of death and disability globally. The WHO is highlighting that health systems are not adequately addressing the escalating cancer rates. Currently, only 12 countries are on track to meet a 2030 target of reducing premature cancer deaths by one-third, while 48 countries are experiencing rising cancer death rates.
Approximately one in five individuals will develop cancer in their lifetime. The most common cancers for men are lung and prostate, while women most frequently face breast and lung cancer. Colorectal cancer ranks third for both sexes. Cancer is the second leading cause of death globally, surpassed only by heart disease. The report estimates that about one in nine men and one in 13 women will die from cancer before age 75.
Geographically, Asia accounts for more than half of the global cancer burden, reflecting its large population. Europe has a disproportionately high rate, representing 21% of global cancer cases, followed by North America at 11%.
The WHO report identifies several factors contributing to the rise in cancer cases, including increasing alcohol consumption, excess body weight, and physical inactivity, even as progress in areas like tobacco use reduction has been made. "Reducing exposure to established risk factors remains one of the most powerful levers for impact," stated Dr. Elisabete Weiderpass, Director of the International Agency for Research on Cancer (IARC).
An aging global population is also a significant factor, as age is the primary risk factor for cancer. More than half of all cancer cases occur in individuals aged 65 and older. By 2050, the proportion of the world's population over 60 is expected to nearly double from 2015 levels, rising from 12% to 22%.
Disparities in Care and Economic Impact
The report also points to significant disparities in diagnosis, screening, and treatment resources across the globe. Many countries are lagging in improving access to these essential services, making care more difficult and expensive for patients. The economic toll of cancer is substantial; even in countries with universal healthcare, patients and their families often face catastrophic health expenditures due to lost income and caregiving costs. The WHO estimates that the cumulative global economic cost of cancer will exceed $33.2 trillion by 2050.
Reversing the Trend
The WHO emphasizes the urgent need for investment, particularly in low- and middle-income countries facing limited resources and higher cancer rates. The organization advocates for comprehensive, integrated approaches to cancer control rather than disease-specific interventions, criticizing the prioritization of high-cost treatments with marginal benefits, often seen in higher-income countries.
Proven prevention strategies, such as WHO's tobacco control guidelines, have contributed to a 27% reduction in tobacco use since 2010. Similarly, HPV vaccination rates among girls have increased significantly. However, progress in prevention is deemed too slow, with the evolving cancer profile increasingly influenced by obesity, inactivity, poor diet, and air pollution.
"Cancer prevention must remain a political priority," Weiderpass urged. The WHO recommends improved data collection on cancer within populations to better measure impact and allocate resources. "Cancer affects all societies, but its burden is not borne equally," said Weiderpass. "This report calls for renewed commitment to ensuring that advances in knowledge and care benefit everyone, everywhere."