Personality disorders are a group of psychiatric conditions marked by chronic behavior patterns that cause serious problems with relationships and work.

People with personality disorders have difficulty dealing with everyday stresses and problems, and they often have stormy relationships with others. These conditions vary from mild to severe and tend to be difficult to treat.

The exact cause of personality disorders is unknown. However, numerous genetic and environmental factors are thought to play a role.

Symptoms vary widely depending on the specific type of personality disorder.

Personality disorders are diagnosed based on a psychological evaluation and the history and severity of the symptoms. Currently, mental health professionals categorize these disorders into the following subtypes:

• Paranoid personality disorder
• Schizoid personality disorder
• Schizotypal personality disorder
• Antisocial personality disorder
• Borderline personality disorder
• Histrionic personality disorder
• Narcissistic personality disorder
• Avoidant personality disorder
• Dependent personality disorder
• Obsessive-compulsive personality disorder

People with these disorders usually do not seek treatment for their personality disorder on their own. They tend to seek help once their behavior has caused severe problems in their relationships or jobs, or when they are diagnosed with another psychiatric problem such as mood or substance abuse disorder. Although personality disorders are notoriously difficult to treat, there is increasing evidence that both medications and various forms of talk therapy have been able to help many people.

The outlook varies. Some personality disorders diminish during middle age without any treatment, while others persist throughout life despite treatment.

• Problems with interpersonal relationships
• Problems with career
• Other psychiatric disorders

Call for an appointment with your health care provider or mental health professional if you or someone close to you has symptoms of a personality disorder.