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why do i need a colonoscopy

Why do I need a colonoscopy?

Colonoscopies are invasive procedures even though the risks are small. There can be bleeding, bowel perforations or other complications especially if you are older however the advantage is that during a colonoscopy the doctor can take a biopsy (a piece of tissue to examine in the lab), remove precancerous polyps if they are there before they grow and spread.