Schizoid personality disorder

Schizoid personality disorder is a Cluster A personality disorder which involves not being interested in social relationships, tendency toward a solitary lifestyle, being secretive and being emotionally cold. This condition is by no means the same as schizophrenia. People with SzPD will typically share some of the negative symptoms and characteristics of schizophrenia, such as blunted effect or detachment. However, schizoids do not have the positive symptoms of schizophrenia such as hallucinations. People who have SzPD do not want a interpersonal relationship which requires emotions. People with SzPD are introverts who feel the need to be independent or alone. Many schizoids are asexual. Any relationships they may have do not involve emotional attachment. SzPD is more common in men than women.

Schizoid personality disorder
Classification and external resources
ICD-10	F60.1
ICD-9	301.20
MedlinePlus	000920
MeSH	D012557

Some of the negative symptoms of the disorder such as low energy may be treated with atypical antipsychotic drugs.

Theodore Millon said that there are four types of schizoid: languid, remote, depersonalized, and affectless.