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Clinical overview

• Schizophrenia is a chronic psychotic illness in which delusions, hallucinations, disorganization, and negative symptoms begin to reshape how a person functions over time. The diagnosis becomes clearer when the psychotic symptoms persist, functioning drops, and shorter or mood-driven explanations stop fitting well.
• Timeline: The timing matters. You need at least 1 month of active symptoms within a broader disturbance that lasts 6 months or longer.
• Mandatory symptom mix: Not every symptom combination qualifies. You need at least two core psychotic symptoms, and one of them must be delusions, hallucinations, or disorganized speech.
• Functional anchor: A real drop in work, relationships, school performance, or self-care helps separate schizophrenia from briefer or less entrenched psychotic syndromes.

Related Guides

• Schizophrenia DSM Criteria Guide
• Schizophrenia Scales and Assessment Tools
• Schizophrenia Treatments and Medications
• When to Seek Professional Help for Schizophrenia