The diagnostic criteria for schizophrenia include symptomatological diagnostic criteria, disease duration criteria, and severity criteria, as follows: First, symptomatological diagnostic criteria: that is, the patient has obvious symptoms of hallucinations, delusions, abnormal behavior, emotional indifference, passive life, and laziness. Second, disease duration criteria: generally schizophrenia must be at least 3-6 months, or even longer, before schizophrenia can be diagnosed. Third, severity criteria: The patient’s symptoms have seriously affected daily social life functions. Patients can be identified as schizophrenic only after meeting the triple criteria. For a clear diagnosis of schizophrenia, it is necessary to go to the psychiatric psychology department of a regular hospital, take a detailed medical history through a doctor, conduct an effective psychiatric examination, and in some cases, may require the assistance of family members or relevant tests, such as blood tests and cranial CT examinations, to exclude interference from other diseases, and then diagnose through symptomatic manifestations of Schizophrenia.