The request for a second medical opinion to confirm findings in cases of doubt, and thus to ensure the best possible treatment for the patient, is increasingly being sought by patients themselves or recommended by treating physicians. However, a second medical opinion only makes sense if it is provided by an experienced specialist. In "The Second Opinion in Shoulder Surgery - A Must," Meyer, Moro, Schwyzer, and Simmen present 63 cases in which the shoulder team at Schulthess Clinic Zurich was asked for a second opinion. Each individual case is fascinating to read and highlights how important obtaining a second opinion before surgery can be for the patient.