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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.
“If you have one of these relatives who had colorectal cancer, you would start the colonoscopy screening at age 40, or 10 years before the diagnosis age of your relative,” Dr. Xavier Llor, the ...
In addition to screening, colonoscopies can be used as a diagnostic tool—such as when symptoms of colorectal cancer are present blood in the stool, weight loss, and a change in bowel habits ...
However, the ACS notes the definition of a “screening” versus a “diagnostic” test may vary by insurer, and not all plans cover all forms of colorectal cancer screenings. ... For more on ...
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.
CT scans and ultrasounds are now the tests of choice for the initial evaluation of abdominal masses, and colonoscopies are becoming the standard for routine colon screening for those over age 50 or with a familial history of polyps or colon cancer, although it is not uncommon for a barium enema to be done after a colonoscopy for further evaluation.