This is a type of psychotic disorder where a person holds one or more firmly-held false beliefs (delusions) for at least one month. Outside of the impact of the delusion(s), functioning is not markedly impaired and behavior is not obviously bizarre or odd. Treatment focuses on managing the delusions and any related distress.

Common Symptoms or Things to Look Out For:

• The presence of one or more delusions with a duration of 1 month or longer.
• Criterion A for schizophrenia has never been met (e.g., no significant hallucinations, disorganized speech, or negative symptoms).
• Apart from the impact of the delusion(s) or its ramifications, functioning is not markedly impaired, and behavior is not obviously bizarre or odd.
• Subtypes include: Erotomanic, Grandiose, Jealous, Persecutory, and Somatic.