Endoscopy is commonly used to investigate symptoms such as persistent heartburn, abdominal pain, bleeding, and difficulty swallowing. It is also employed for screening purposes, such as colonoscopy for colorectal cancer. During the procedure, the physician can perform biopsies, remove polyps, control bleeding, and treat strictures or other abnormalities. Endoscopy is minimally invasive, typically conducted under sedation to ensure patient comfort. Its ability to provide real-time images and facilitate immediate interventions makes endoscopy an essential tool in diagnosing and managing a wide range of gastrointestinal conditions, significantly enhancing patient care and outcomes.