What is the common age range for screening colonoscopy?

The common age range for screening colonoscopy has been established based on evidence connecting age with colorectal cancer risk. Starting screening at age 45 is now widely recommended by various health organizations, reflecting a shift in awareness around the increasing incidence of colorectal cancer among younger populations.

Research indicates that beginning screening earlier, specifically at age 45, helps to identify potential issues before they progress to more serious stages. Although some guidelines traditionally suggested a starting age of 50, the consensus has evolved to lower the initial age due to rising concerns about early onset colorectal cancer. This adjustment aims to ensure that individuals benefit from early detection and can take preventative measures if necessary.

The choices representing ages earlier than 45 are not aligned with current guidelines endorsed by major health organizations, such as the American Cancer Society and the U.S. Preventive Services Task Force. Therefore, the selection of starting screening at age 45 or 50 as the correct answer reflects this updated understanding of cancer risks and the need for timely screenings.