Schizoid Personality Disorder

Schizoid Personality Disorder is a Cluster A condition characterized by a long-standing pattern of social detachment and limited emotional expression. It is relatively rare and responds modestly to long-term psychotherapy.

Schizoid Personality Disorder is diagnosed when a person shows a pervasive pattern of detachment from social relationships and a restricted range of emotional expression in interpersonal settings, beginning by early adulthood and present in multiple contexts.

DSM-5 Criteria

Diagnosis requires four or more of: lacks desire for close relationships including family; almost always chooses solitary activities; little interest in sexual experiences with another person; takes pleasure in few activities; lacks close friends/confidants other than first-degree relatives; appears indifferent to praise or criticism; shows emotional coldness, detachment, or flattened affectivity.

Symptoms cannot occur exclusively during a psychotic disorder, bipolar disorder, or autism spectrum disorder.

Treatment Approaches

Schizoid PD is harder to treat than most personality disorders because affected individuals often don’t experience subjective distress about their isolation. When treatment occurs, it’s usually because of secondary depression or external pressure.

Supportive psychotherapy focused on functional improvement (work, daily structure) tends to be more effective than insight-oriented approaches. Schema Therapy and group therapy have some evidence base. Medication is reserved for co-occurring conditions.