What is a personality disorder?
A person with a personality disorder has a mental illness that results in abnormal behavior and difficulty with interpersonal relationships. The cause for personality disorders is unknown.

What are the symptoms of a personality disorder?
Symptoms of a personality disorder include depression, anxiety, inflexibility, poor social performance, poor occupational performance, tendency to blame others, and difficulty controlling impulses. Other symptoms include the inability to cope with everyday life and a limited ability to adapt to difficult social situations.

How does the doctor treat a personality disorder?
Treatment for a personality disorder depends on the type of personality disorder. Treatment for a personality disorder may include mental health counseling, a support group, anti-anxiety medications, and antidepressant medications, such as tricyclic antidepressants or selective serotonin reuptake inhibitors.