The main complaint concerning colonoscopy is not the procedure itself but rather the preparation necessary for proper colon cleansing. Patients are placed on a clear liquid diet the day before a colonoscopy, and will be asked to take a solution to clean the colon out. The common complaints from people who endure the prep the day before their colonoscopy include nausea, bloating and vomiting.
It’s important to finish the prep because if you don’t do it well, the procedure is useless as they won’t be able to visualize anything . See More