An endoscope is a flexible tube equipped with a light and camera, used by medical professionals to visualize the interior of a patient's body. It allows for minimally invasive examinations and procedures, making it a vital tool in modern medicine. Endoscopes can be inserted through natural openings or small incisions, providing real-time images to assist in diagnosis and treatment. These devices are commonly used in various medical fields, including gastroenterology for examining the digestive tract and pulmonology for inspecting the lungs. The use of endoscopes has revolutionized how doctors perform surgeries and diagnose conditions, leading to quicker recovery times for patients.