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What is undifferentiated schizophrenia?

Donna Hill Howes, RN
Family Medicine
When people have symptoms of schizophrenia, they often display strange behaviors or ways of speaking and may appear to be completely out of touch with reality. Often, people with schizophrenia can be classified into one type or another. For instance, some people have prominently paranoid symptoms and are called paranoid schizophrenics. Others have catatonic symptoms and are called catatonic schizophrenics. However, people who show a mix of symptoms that fall into the various types, such as hallucinations, disorganized thoughts and behaviors, and flat affect, are considered to have undifferentiated schizophrenia because they don't fit into a specific subgroup of the illness.
Douglas E. Severance, MD
Family Medicine
Undifferentiated schizophrenia is a mental illness in which a person has symptoms of schizophrenia that cannot be classified into a particular type. These other types are paranoid, catatonic, and disorganized schizophrenia. You may be classified as having undifferentiated schizophrenia if your symptoms are not specific enough to meet the definition for paranoid, catatonic, or disorganized schizophrenia.
Dr. Michael Roizen, MD
Internal Medicine

Undifferentiated schizophrenia is one of the five subtypes of schizophrenia. You can think of it like leftover night. You have some of all of that week’s dishes on your plate, but not enough of any of them alone to be a sufficient meal. Undifferentiated schizophrenia is characterized by a combination of symptoms from several other subtypes of schizophrenia, but not enough to qualify you as that subtype.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.