The Diagnostic and Statistical Manual of Mental Disorders, or the DSM-5, identifies 10 unique personality disorders—conditions in which people have traits that cause them to feel and behave in ...

Schizotypal personality disorder is a cluster A personality disorder that involves various symptoms. These symptoms include difficulty in relationships, atypical thinking and behavior, and a distorted ...

The exact cause of personality disorders is unclear. However, genetics, neurological differences, and environmental factors may contribute to the development of these complex mental health conditions.

Medically reviewed by Kira Graves, PhD Key Takeaways People with schizoid personality disorder often show little emotion and ...