A colonoscopy is a relatively quick procedure, typically taking about 20 to 30 minutes to complete. During this process, your medical professional will use a long, flexible tube with a camera, known as a colonoscope, to thoroughly examine the inside of your colon and rectum for abnormalities. If a polyp is found and removed during the procedure, it may extend the length of the colonoscopy slightly. Removing polyps is an important part of colonoscopy, as it helps prevent potential issues from developing into more serious conditions, like colorectal cancer. After the procedure, you will spend some time in a recovery area as the sedative wears off. This usually takes about an hour. You will need to arrange for someone to drive you home, as the full effects of the sedative may take up to a day to wear off.