Endoscopy is a medical procedure that allows doctors to examine the inside of the body using a thin, flexible tube called an endoscope. This instrument is equipped with a light and camera, which helps in viewing organs such as the digestive tract, lungs, or joints on a monitor. It is commonly used to diagnose conditions like ulcers, inflammation, tumors, or internal bleeding, and can also assist in taking tissue samples (biopsies) for further analysis.The procedure is usually minimally invasive and can be performed with local or general anesthesia depending on the type and purpose. In many cases, endoscopy is not only diagnostic but also therapeutic, meaning doctors can treat certain conditions during the same procedure, such as removing polyps or stopping bleeding. It is generally safe, with quick recovery time, making it a widely preferred method in modern medical practice.