A positive sulcus sign means excessive laxity of the shoulder joint. In this the arm of the patient is held at the elbow and pushed downwards to see if a sulcus develops at the shoulder joint. If the sulcus develops, then the patient is also examined on the other side as well as on the other joints to see if the patient has generalized ligamentous laxity. These findings have implication in the management and result of treatment of patients.