Upper endoscopy is currently one of the most frequently performed procedures. The most common indications for 

Diagnostic EGD include 

Dyspepsia unresponsive to medical therapy or associated with systemic signs, dysphagia or odynophagia, persistent gastroesophageal reflux symptoms, occult gastrointestinal bleeding, and surveillance for malignancy. 

Therapeutic upper endoscopy 

Acute gastrointestinal bleeding, foreign body removal and stricture dilatation.