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Routine use of colonoscopy screening varies globally. In the US, colonoscopy is a commonly recommended and widely utilized screening method for colorectal cancer, often beginning at age 45 or 50, depending on risk factors and guidelines from organizations like the American Cancer Society. [9] However, screening practices differ worldwide.
Screening for colorectal cancer, if done early enough, is preventive, seeing as benign lumps called polyps in the colon and rectum are the start to almost all cases of colon cancer. These polyps can be identified and removed by screening tests like a colonoscopy , in which the whole colon is visible.
Colorectal cancer screening options include at-home stool-sample tests, which are more convenient for patients. Despite these alternatives, colonoscopy remains the most effective method.
Screening has the potential to reduce colorectal cancer deaths by 60%. [118] The three main screening tests are colonoscopy, fecal occult blood testing, and flexible sigmoidoscopy. Of the three, only sigmoidoscopy cannot screen the right side of the colon where 42% of cancers are found. [119]
If you’re between the ages of 45 and 85, you should have a colorectal cancer screening routine in place, per the American Cancer Society (ACS).But a colonoscopy—in which your doctor uses a ...
The benefits of colonoscopy in preventing colorectal cancer may have been exaggerated, according to a new study. Doctors in the U.S. say colon cancer screening does save lives.