Doctors make use of different kinds of endoscopes to diagnose and or treat their patients. There are endoscopic visualizations that require the use of small endoscope and large endoscope, depending also on the prerogative of the physician. Interestingly, there are different types of endoscopic procedures which are named after the body parts being evaluated. Here is a short list of some of the most commonly-used endoscopes and where they are usually used for: