Colonoscopy Make an Appointment Patient Education Find a Doctor Download Patient Education Your doctor has suggested that you have a colonoscopy as part of your evaluation at National Jewish Health. A colonoscopy allows the doctor to look inside the colon, or large intestine, using a small flexible tube. Your doctor may also do a biopsy and remove any polyps (small growths) he/she finds during the procedure. Download PDF: Colonoscopy Download PDF: Colonoscopy View more information on Colonoscopy National Jewish Health authors free downloadable patient education materials to provide you and your family the information and tools to help manage your disease. They include Understanding Booklets, Med Facts, Test Facts, Medication handouts and more. Search Free Education Materials