Colonoscopy is a procedure in which a doctor uses a colonoscope or scope, to look inside your rectum and colon. Colonoscopy can show irritated and swollen tissue, ulcers, polyps, and cancer.
Endoscopy
Upper GI endoscopy is a procedure in which a doctor uses an endoscope a flexible tube with a camera to see the lining of your upper GI tract..
Flexible Sigmoidoscopy
Flexible sigmoidoscopy is a procedure in which a trained medical professional uses a flexible, narrow tube with a light and tiny camera on one end, called a sigmoidoscope or scope, to look inside your rectum and lower colon, also called the sigmoid colon and descending colon.
