Schizophrenia refers to schizophrenia, while split personality refers to schizotypal personality disorder, and they are two different kinds of mental illnesses.
1. Schizophrenia: mainly characterized by incoordination of mental activities. Typical manifestations include positive symptoms such as hallucinations and delusions, and negative symptoms such as diminished volition and emotional retardation. Those diagnosed with schizophrenia need to be treated with antipsychotic drugs (e.g., chlorpromazine, risperidone) as the main treatment, supplemented by psychotherapy such as cognitive-behavioral therapy and physical therapy such as electroconvulsive therapy.
2. Schizotypal Personality Disorder: characterized by long-term abnormal personality traits, typical manifestations include cognitive distortions, inappropriate emotional experiences, and social dysfunction. Those diagnosed with schizophrenia need psychotherapy (commonly used psychoanalytic therapy and social skills training) and medication (commonly used mood stabilizers such as lithium carbonate and antipsychotics such as olanzapine).
In summary, although schizophrenia and schizotypal personality disorder have similar clinical manifestations and are easily confused, they are two fundamentally different diseases. Therefore, those who have relevant manifestations must seek medical treatment for diagnosis and treatment in a timely manner, and must not make blind judgments and dispose of them on their own, so as to avoid adverse consequences.