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Personality Disorders Directory
A personality disorder is a psychiatric disorder that causes a person to act differently than the social norm and can cause serious problems with socializing or even day-to-day skills. For example, with dissociative identity disorder, or multiple personality disorder, a person has no connection with their thoughts, memories, and actions, and may be torn between two distinct personalities that control him or her. Follow the links below to find WebMD's comprehensive coverage about how a personality disorder is caused, how to treat it, and much more.
Medical Reference
What Is Ganser Syndrome?
WebMD explains a rare disorder known as Ganser syndrome, in which people mimic the symptoms of serious mental illnesses to draw attention to themselves.
Factitious Disorders
WebMD looks at factitious disorders, conditions in which a person deliberately and consciously acts as if he or she -- or a loved one -- has a physical or mental illness when he or she is not really sick.
Delusional Disorder
Delusional disorder, previously called paranoid disorder, is a mental disorder in which a person cannot tell what is real from what is imagined. Learn more about the causes, symptoms, and treatment of this illness.
Dependent Personality Disorder
WebMD explains Dependent Personality Disorder (DPD), including its causes, symptoms and treatment.
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Slideshows & Images
A Closer Look at Depression
What is depression? WebMD provides information on symptoms, tests, and treatments for many types of the disorder.
Can Your Personality Affect Your Health?
Certain types of people, like optimists or extroverts, may have a few health advantages. Find out more about how some personality traits can affect you physically.