The purpose of this project is to provide information which can help us understand what happens over time to rotator cuff tears. In this study, the investigators will follow a population of people with rotator cuff tears that do not hurt (asymptomatic) and to establish the probability that an asymptomatic rotator cuff tear, identified in the context of contralateral symptoms, will become symptomatic over time. To determine with ultrasound the probability that a rotator cuff tear will enlarge over time. To determine if symptom progression correlates with enlargement of the rotator cuff tear and/or degenerative changes on radiographs. In order to obtain data, study subjects will be recalled for follow-up at 1 year time points over a 5 year period. The study subjects will have repeat physical exam, ultrasound and radiographic examinations. A control group of normal patients will also be followed for comparison.