Hand therapy is the rehabilitation of the upper quarter of the human body (primarily shoulder, elbow, forearm, wrist, and hand). Hand therapy is a merging of occupational therapy and physical therapy theory and practice that combines comprehensive knowledge of the upper extremity. Using specialized skills in assessment and treatment, hand therapists promote the goals of prevention of dysfunction, restoration of function and/or reversal of the progression of injury or disease in order to enhance participation in life situations for individuals with upper extremity disease or injury.