This is a short patient education presention on Arthroscopy or Key hole surgery. It gives brief outline of the procedure. Arhroscopy or key hole surgery is surgical procedure in which joints like knee, shoulder , elbow, ankle, hip joints could be examined for diagnosis and some times as used to provide definitive treatment. This surgical pocedure can be carried out as outpatient or inpatient basis. The main advantage of this procedure is it is minimally invasive, faster recovery, small scars.