Educational Content: This article is for informational purposes only and does not constitute medical advice. Always consult a healthcare provider for diagnosis and treatment.
Definition of Psychosis, schizophrenia
Medically reviewed by Dr. Otari Nergadze, Neurosurgeon | Updated: January 2026
Psychosis, schizophrenia: The most chronic and disabling of the major mental illnesses. Schizophrenia may be one disorder, or it may be many disorders, with different causes. Because of the disorder's complexity, few generalizations hold true for all people who are diagnosed as schizophrenic.
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