Personality disorders affect an estimated 9% of Americans. Only a mental-health professional can diagnose a personality disorder, typically in adulthood. Insider compared the behaviors, traits, and ...

Personality Disorders are long-standing patterns of thinking and behavior that lead to problems in interpersonal relationships and may cause impairment or distress in the person with the disorder. A ...

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.

Genetics is just one of several factors thought to influence personality disorder development. Life experiences, family dynamics, coping mechanisms, and social learning may all be contributing factors ...

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The Diagnostic and Statistical Manual of Mental Disorders, DSM-5, identifies 10 unique personality disorders, each belonging to one of three groups known as "clusters." Cluster A contains paranoid, ...

A personality disorder is a mental disorder that’s caused by an unhealthy pattern of thought and behavior. People with personality disorders often struggle to interact with the world. Their disorder ...