1. Introduction
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COLORECTAL CANCER, COLORECTAL POLYPS
Colonoscopy is a useful tool for detecting and removing colorectal polyps, which is a precursor lesion of colorectal cancer.Many studies have shown that oral administration of simethicone before colonoscopy helps eliminate these bubbles.In addition, simethicone administration can reduce bloating symptoms.Therefore, this study aimed to confirm the advantages of taking simethicone compared to those by not taking it and attempted to determine the optimal time for taking simethicone during bowel preparation to reduce bubbles.