Schizophrenia is a group of mental disorders of thinking, emotion and volitional behavior. Clinical manifestations include perceptual disorders, thought disorders, emotional disorders and volitional behavior disorders, etc. The specific manifestations are as follows: 1. perceptual disorders: the most common symptom is hallucinations; for example, hallucinations, hearing voices that others cannot hear is called hallucinations, and hallucinations can be commentary or command; there are also hallucinations, hallucinations or hallucinations, that is, seeing things that others cannot see or smelling things that others cannot smell, all of which are perceptual These are very common delusions in clinical practice, including delusions of relationship and delusions of victimization; 3. So now the clinical presentation of schizophrenia is sometimes said to have five dimensions of symptoms, including positive symptoms, negative symptoms, cognitive symptoms, affective symptoms, and aggression symptoms.