What Is an Upper Endoscopy (EGD) and What Can It Detect?
Persistent heartburn, difficulty swallowing, unexplained stomach pain, or chronic nausea can disrupt daily life and leave you searching for answers. While symptoms often provide clues, seeing what is happening inside the upper digestive tract can be essential for making an accurate diagnosis. An upper endoscopy, also known as an esophagogastroduodenoscopy (EGD), is one of the most effective tools gastroenterologists use to evaluate digestive health. This article explains what an upper endoscopy is, how it works, and what it can detect.





