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Is delusional disorder related to schizophrenia?

Douglas E. Severance, MD
Family Medicine
Delusional disorder shares some of the symptoms of schizophrenia, but it is a different type of mental illness. People with delusional disorder, like some people with schizophrenia, often have delusions. Delusions may entail obsessive worries about situations that could possibly occur, such as worrying that one's spouse is unfaithful, that one's food supply is poisoned, and other similar thoughts. Typically, this disorder does not appear until late in life, usually after middle age. Treatment for delusional disorder may include hospitalization, antipsychotic medications, and therapy. Some people with delusional disorder also have paranoid personality disorder. Paranoid personality disorder causes a person to have trouble trusting others, leading to social withdrawal.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.