6 Reasons You May Need an Endoscopy Did your doctor request you to undergo an endoscopy but you don't know what it is all about? Don't worry, we've got your back! This infographic shares the top reasons why you need to undergo an endoscopy procedure. Endoscopy is a medical procedure that allows doctors to examine the inside of your gastrointestinal tract. It has been used for many years to diagnose and treat a variety of digestive conditions. The cost of endoscopy in Singapore varies depending on the type of endoscopy and the healthcare provider.