Psychosis and schizophrenia cannot be generalised. Schizophrenia can manifest as psychosis, but in addition to schizophrenia, psychosis can also be caused by other non-schizophrenic factors such as bipolar disorder, schizoaffective disorder, depression, anxiety disorders, etc. Also, patients may present with psychotic manifestations such as abnormalities in speech, sensation, perception and confused speech. In short, it can be assumed that psychotic disorders include schizophrenia.