One controversy surrounding schizoid personality disorder lies in the separation of schizoid and avoidant PDs in the DSM. In nonclinical subjects, social anhedonia has uniquely predicted schizoid PD symptoms. Professionals believe that this disorder can be assessed based on certain symptoms, including how detached or disinterested individuals are in social relationships. The diagnosis of this disorder is based on discussing the symptoms of a patient. Some ethical and legal issues that arise while dealing with such patients include when to hospitalize.