What is a paranoid personality disorder?
A person with paranoid personality disorder has a mental illness that results in distrust and suspiciousness. Persons with this condition tend to be unhappy, and they are unable to maintain healthy relationships.

What are the symptoms of a paranoid personality disorder?
Symptoms of a paranoid personality disorder include worrying about being harmed by others and an inability to trust others. Additional symptoms of paranoid personality disorder include fear that information shared with others will be used against the person, suspicion that a spouse is unfaithful, depression, poor social performance, poor occupational performance, and the inability to cope with everyday life.

How does the doctor treat a paranoid personality disorder?
Treatment for a paranoid personality disorder may include a support group, mental health counseling, selective serotonin reuptake inhibitor antidepressants, tricyclic antidepressants, and antipsychotic medications.