Both enteroscopy and endoscopy are diagnostic procedures that utilize a flexible, camera-equipped tube called an endoscope. However, they differ in the areas of the digestive system they examine. Endoscopy is generally used to inspect the upper gastrointestinal tract, including the esophagus, stomach, and the beginning of the small intestine. Enteroscopy targets the small intestine more extensively and is often employed to explore areas beyond the reach of standard endoscopy and colonoscopy, particularly when those tests do not yield definitive results or when specific issues in the small intestine have been identified.