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Comorbidity of Schizophrenia and Cotard's Syndrome

Cotard's Syndrome (the delusion of being dead or non-existent) can occur as a symptom of schizophrenia, and schizophrenia is itself one of the recognized causes of Cotard's Syndrome. This comorbidity is rare: fewer than 1% of individuals with schizophrenia are also diagnosed with Cotard's Syndrome. The two conditions share overlapping symptoms, most notably nihilistic delusions and ideas.

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Updated 2026-07-10

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