Endoscopy provides a live close-up vіеw оf thе dіgеѕtіvе trасt and may be used for diagnostic or therapeutic purposes. An upper GI endoscopy or oesophagogastroduodenoscopy (OGD) examines thе oesophagus, ѕtоmасh, аnd thе first раrt оf the small іntеѕtіnе known as the duodenum. Conditions that affect the mucosal lining of the upper digestive tract such as ulcers, polyps, nodules, vascular disorders, tumours and cancers may be accurately diagnosed. The scope is preferred to a scan because of the ability to visualise these conditions directly. A therapeutic scope refers to a procedure that is performed to remove a blockage such as a foreign body or food particle in the intestinal tract or to arrest internal bleeding that occurs. Below are some conditions that require upper endoscopy.