Global cancer diagnoses are expected to rise sharply over the next quarter-century, with the World Health Organization projecting nearly 35 million new cases annually by 2050, up from about 20 million today.
The increase will place growing pressure on health-care systems worldwide as populations age and risk factors including obesity continue to affect cancer rates. While prevention efforts have contributed to declines in some forms of the disease, experts warn the overall burden will continue to grow.
The WHO’s International Agency for Research on Cancer projects cancer cases will rise across all regions during the next 25 years, although the factors driving the increase will differ between countries.
The impact also extends far beyond patients. Researchers estimate about 92 per cent of the global population has been personally affected by cancer through a family member, caregiver or close friend, even though roughly 20 million people receive a diagnosis each year.
Despite the projected increase, experts stress that millions of future cancer cases remain preventable.
The WHO estimates roughly four in 10 cancers are associated with preventable risk factors, including tobacco use, obesity, physical inactivity, alcohol consumption and certain infections.
For Canadians, Stotland pointed to healthy lifestyle choices and participation in recommended screening programs as important steps in reducing cancer risk and improving early detection.
Screening programs for breast, cervical and colorectal cancer help identify disease at earlier stages, when treatment outcomes often improve.
The report adds urgency to calls for governments and health-care systems to prepare for rising demand while expanding cancer prevention, screening and treatment capacity. Long-term planning will play a key role as countries respond to growing patient volumes and the broader impact on families and caregivers.
