Schizophrenia

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Schizophrenia

Medically reviewed · Ratel Health editorial team · Sunday, 16 August 2026

A chronic psychotic disorder involving disruptions in thinking, perception, and behavior, including hallucinations, delusions, and disorganized thinking.

Overview

Schizophrenia is a chronic psychotic disorder that affects how a person thinks, perceives reality, and behaves. It typically involves periods of active symptoms along with changes in functioning that can persist over time.

Signs and Symptoms

Symptoms may include hallucinations, delusions, disorganized speech or thinking, and reduced motivation or emotional expression. Symptoms can vary considerably between individuals and over the course of the illness. Experiencing one or more of these symptoms does not necessarily mean that a person has this condition. Diagnosis requires an appropriate clinical evaluation.

Causes and Risk Factors

The exact cause is not fully understood. Genetic factors, differences in brain development and neurotransmitter systems, and environmental stressors are each associated with increased risk.

Diagnosis

A diagnosis should be made by a qualified healthcare professional following a comprehensive clinical assessment. Clinicians may use established diagnostic frameworks such as DSM-5-TR and/or ICD-11 as part of a comprehensive assessment.

Treatment

Treatment depends on the individual’s symptoms, clinical history, severity, age, co-occurring conditions, and other relevant factors.

Psychotherapy

Coordinated specialty care, family psychoeducation, and supportive or cognitive behavioral approaches may help alongside medication, particularly early in the illness.

Medication

Antipsychotic medications are a core part of treatment and several are FDA-approved for schizophrenia; ongoing medication management is often important for symptom control. Medication decisions should be made with a qualified prescribing healthcare professional. Do not start, stop, or change a prescribed medication based solely on information on this page.

Living With Schizophrenia

Consistent treatment engagement, structured daily routines, and social and vocational support can significantly improve day-to-day functioning.

When to Seek Professional Help

Professional evaluation may be appropriate if symptoms persist, worsen, cause significant distress, or interfere with work, school, or relationships.

Emergency Situations

If a person may be in immediate danger, is experiencing a medical or psychiatric emergency, or may harm themselves or another person, seek immediate assistance through appropriate local emergency services.

Outlook

Outcomes vary widely; with early and consistent treatment, many people with schizophrenia are able to manage symptoms and pursue meaningful goals.

Related Conditions

Schizoaffective Disorder

A condition involving an uninterrupted period of illness with a major mood episode concurrent with symptoms of schizophrenia, along with psychotic symptoms occurring in the absence of mood symptoms.

Schizophreniform Disorder

A psychotic disorder involving symptoms of schizophrenia lasting at least one month but less than six months.

Delusional Disorder

A psychotic disorder involving one or more fixed, false beliefs (delusions) lasting a month or longer, without other prominent psychotic symptoms.

Brief Psychotic Disorder

A short-term psychotic condition involving sudden onset of symptoms such as delusions or hallucinations lasting less than one month.

Catatonia

A condition marked by a cluster of motor disturbances, such as immobility, mutism, or unusual movements, occurring in the context of another mental or medical condition.

Medical Information Disclaimer

Ratel Health provides general educational information and does not provide medical diagnosis, treatment, or individualized medical advice. Information on this page is not a substitute for evaluation or care from a qualified healthcare professional. Do not use this information to diagnose yourself or another person, or to start, stop, or change treatment or medication without consulting an appropriately qualified healthcare professional.

References

  • American Psychiatric Association. Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition, Text Revision (DSM-5-TR).
  • National Institute of Mental Health.
  • U.S. Food and Drug Administration.
  • World Health Organization. International Classification of Diseases, 11th Revision.