What is the standard frequency of colonoscopy screening for adults?

The standard frequency for colonoscopy screening for adults is typically every 10 years for individuals who are at average risk and start screening at age 45. This recommendation aligns with guidelines from health organizations such as the American Cancer Society and the US Preventive Services Task Force, which have established this interval to effectively detect colorectal cancer and precancerous polyps while also considering the balance between benefits and potential risks of the procedure.

This 10-year interval is appropriate for individuals who do not have a personal or family history of colorectal cancer or specific risk factors that might necessitate more frequent screenings. In such cases, alternative recommendations may apply, including earlier initiation of screening or more frequent intervals, but for the general population, a decade between screenings is considered adequate to monitor for significant changes in the colon's health. This strategy helps optimize healthcare resources while still providing essential preventive care.