Arthroscopy is also known as key-hole joint surgery and is one of the latest and advanced treatment modalities to treat joint injuries. In this procedure, using fine telescopes, the inside of the joint is visualized and surgical procedures are carried out using specialized instruments. During this procedure, an orthopaedician examines and even repairs injured or diseased joint with the help of an optical instrument called an arthroscope in some cases. An arthroscope comprises of a light source, a lens system, and bundled glass or optical fibers to carry light to the area being examined. These parts are encased in a tube, usually about 4mm in diameter. A video camera is attached to the arthroscope which relays the view within joint to an attached monitor. Because the arthroscope is so thin than surgeon needs only a small incision to place it in the joint. Surgical visualization by means of arthroscopy has revolutionized orthopedics by allowing direct treatment of intra-articular pathology. Any disease affecting the inside of a joint can be seen and diagnosed. Various surgical procedures can be performed under this arthroscopic vision. An arthroscope is like an Endoscope. Arthroscopic procedures for treating knee ligament tears and meniscus tears are among one of the gold standards for treatment. In addition shoulder problems like dislocations, cuff tears are treated arthroscopically. Arthroscopy has a role in the management of an injured athlete and allows the athlete to return to the previous level of activity.