The three main prominent stages of Schizophrenia include: Prodromal: This is the earliest stage of Schizophrenia, which mostly goes unnoticed. People can hardly tell if a person is suffering from this disorder until they reach the second stage. Active: At this stage, people start showing the symptoms of Schizophrenia. They will start talking without any relevance and tell you stories of hallucinations and delusions.  Residual: Some clinicians don't identify this as the third stage of Schizophrenia, but still some describe this phase while discussing symptoms. This phase is pretty similar to the first stage. Patients in this phase show lack of emotions, and most of the other symptoms, which are pretty visible in the second phase, vanish.