How does colonoscopy work?
Your doctor will gently pass the endoscope through your bowel, gently rotating the tip to follow the shape of your bowel. A light at the end of the endoscope illuminates the surface of the bowel, and the camera transmits the images to a monitor.
Typically, a colonoscopy will take between 30 and 45 minutes to perform. If your doctor feels it is required, they may remove polyps, or perform a biopsy during the procedure.
After the procedure, it will take up to 60 minutes for the effects of the sedative to wear off. You may feel some bloating and discomfort as a result of the air in your colon. You should pass gas and not feel embarrassed doing this either during or after the procedure. This will relieve your feelings of bloating and cramping.
You may feel groggy after the sedative, so you should not drive yourself home.