Starting in July 2026, Ontario will lower the age for colorectal cancer screening to 45, making it the second province in Canada after Prince Edward Island to adopt the earlier screening threshold. The change is based on recommendations from the Canadian Task Force on Preventive Health Care and aims to detect cancers earlier, potentially reducing mortality rates among younger adults.
Details of the New Screening Guidelines
Under the updated policy, Ontarians aged 45 to 49 will be eligible for fecal immunochemical testing (FIT) every two years, while those aged 50 to 74 will continue with the existing program. The expansion is expected to cover approximately 1.2 million additional individuals in the province. According to the Ontario Ministry of Health, the move aligns with evidence showing rising colorectal cancer incidence in younger populations.
“Colorectal cancer is highly treatable when caught early, and lowering the screening age will save lives,” said Dr. Kieran Moore, Ontario’s Chief Medical Officer of Health. “We encourage all eligible Ontarians to participate in screening.”
Impact and Provincial Context
Prince Edward Island implemented a similar policy in 2024, becoming the first province to lower the screening age. Other provinces, including British Columbia and Alberta, are reviewing their guidelines. The Canadian Cancer Society estimates that colorectal cancer is the second most common cancer cause of death in Canada, with about 26,300 new cases diagnosed annually.
“Early detection through screening can reduce colorectal cancer mortality by up to 30 percent,” noted a spokesperson for the Canadian Cancer Society. “Ontario’s decision is a positive step toward improving cancer outcomes.”
Implementation and Public Response
The Ontario government will work with primary care providers and public health units to ensure smooth implementation. Educational campaigns will target the newly eligible age group to raise awareness about screening benefits. Some advocacy groups have called for further lowering of the age to 40, citing disparities in certain populations, but the province has not indicated plans to extend the threshold further at this time.
