Medical technology is constantly improving, giving the physician more options to aid in diagnosis and treatment of ailments. Ultrasound (US) technology is one area that has made great improvements. Increased resolution and availability are two reasons why ultrasound is now being used to image the musculoskeletal system. This article discusses ultrasound technology, instrumentation, basic exam of ankle tendons, and some of the recent uses. The objective is to make the physician aware of this modality and possibly add it to their diagnostic armementarian.