Ontario Lowers Colorectal Cancer Screening Age

Canada — Ontario is lowering its colorectal cancer screening age from 50 to 45, effective July 1, in response to a significant increase in diagnoses among younger individuals. This decision, informed by expert panel guidance and modeling, aims to detect and treat cancer earlier, building on Canada — Ontario's previous move to lower breast cancer screening age. Canada — Prince Edward Island was the first Canadian province to implement this change, and the United States and Australia have also adopted similar policies. Organizations like Colorectal Cancer Canada and the American Cancer Society have advocated for this change, citing evidence that people under 50 are increasingly susceptible to colorectal cancer. The new guidelines also adjust colonoscopy recommendations for individuals with a family history of the disease. While an initial increase in abnormal test results and demand for surgeries is anticipated, these volumes are expected to stabilize as pre-cancers are detected and removed.