First, the health care provider performs a digital rectal exam by inserting a lubricated, gloved finger into the rectum to determine if anything will block the insertion of the scope. He or she then inserts a lubricated metal or plastic anoscope a few inches into the rectum. This enlarges the rectum to allow the health care provider to view the entire anal canal using a light. A specimen for biopsy can be taken if needed. As the scope is slowly removed, the lining of the anal canal is carefully inspected.
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