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New study on colonoscopy finds they may not be that effective at preventing colon cancer, death. But you still need regular colon cancer screening, doctors say.
It’s covered every 48 months (four years) if you are age 50 or older and at high risk, or once every 10 years after a colonoscopy if you are 50 or older and not at high risk. Stool-based tests
Colorectal cancer, which develops slowly over several years without causing symptoms especially in the early stages, is the second-largest cancer killer in the U.S., claiming more than 50,000 ...
Some medical societies in the US recommend a screening colonoscopy every 10 years beginning at age 50 for adults without increased risk for colorectal cancer. [25] Research shows that the risk of cancer is low for 10 years if a high-quality colonoscopy does not detect cancer, so tests for this purpose are indicated every ten years. [25] [26]
The signs and symptoms of colorectal cancer depend on the location of the tumor in the bowel, and whether it has spread elsewhere in the body ().The classic warning signs include: worsening constipation, blood in the stool, decrease in stool caliber (thickness), loss of appetite, loss of weight, and nausea or vomiting in someone over 50 years old. [15]
Serrated polyposis syndrome often does not cause symptoms. The risk of colon cancer is between 25 and 40%. [8] Sessile serrated polyps, as seen during endoscopy or colonoscopy, are flat (rather than raised) and are easily overlooked. Serrated lesions range in size from small (<5 mm) to large, and often have a "mucous cap" overlying the polyp.