Gastroscopy, also known as upper gastrointestinal (GI) endoscopy, is a vital procedure performed in the surgery department to examine the inner lining of the upper digestive tract, which includes the esophagus, stomach, and the duodenum. This procedure employs a specialized instrument called a gastroscope, a flexible tube with a light and camera, allowing for visual inspection and intervention. Gastroscopy is a crucial procedure in the surgery department, offering both diagnostic and therapeutic benefits. It allows for the direct visualization of the upper GI tract, aiding in the accurate diagnosis and effective treatment of various gastrointestinal disorders.