Catatonic type schizophrenia

Catatonia (withdrawn type) is characterized by prolonged immobility, waxy flexibility, posturing, and grimacing. Because catatonic symptoms can also occur in other types of psychosis, they are not specific to schizophrenia. 

For a diagnosis of schizophrenia, these three phases must last more than six months and must not be due to a mood disorder. Three types of schizophrenia are delineated catatonic (prominent movement disorder), disorganized (severe thought disorganization), and paranoid (prominent paranoid delusions with mild disorganization of thinking). Undifferentiated and residual types are categories for those who do not fit the above three types but have a mix of features. 

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