Gastroscopy, also known as Upper GI Endoscopy, is a diagnostic procedure that allows direct visualization of the esophagus, stomach, and upper part of the small intestine (duodenum). Dr. Bhavesh Thakkar uses gastroscopy to investigate symptoms such as heartburn, nausea, vomiting, persistent upper abdominal pain, difficulty swallowing, and gastrointestinal bleeding. A thin, flexible tube with a camera (endoscope) is gently inserted through the mouth to examine the upper digestive tract. The procedure helps diagnose ulcers, inflammation, tumors, infections, and more. It also allows for biopsy and minor treatments like polyp removal—all in a single, minimally invasive session.