Schizophrenia is a group of severe psychiatric disorders of unknown etiology, most often with a slow or subacute onset in young adults, and often manifests clinically as a syndrome of varying symptoms involving multiple impairments in perception, thinking, emotion and behavior, as well as incoordination of mental activities. Patients are generally conscious and have normal intelligence, but some patients may develop cognitive impairment during the course of the disease. The course of the disease is generally prolonged, with recurrent episodes, exacerbations or deterioration, and some patients eventually experience decline and mental disability, but some patients can remain cured or largely cured after treatment. What are the types of schizophrenia? 1. Paranoid type: Delusions are the main clinical manifestation, often accompanied by hallucinations. Sensitivity and paranoia, relationship delusions, and delusions of victimization are common. This is followed by affect, jealousy, etc. The vast majority of patients have several kinds of delusions at the same time. 2. Adolescent type: The disease starts in youth, showing excitement, talkative and active, disorganized speech, strange, disorganized, stupid and childish behavior, and incongruous thinking, emotion and behavior. 3.Tension type: Tension xylophobia and tension excitement, with tension syndrome as the main clinical manifestation. 4.Simple type: the main clinical phase is the negative symptoms such as paucity of thought, emotional indifference, lack of will and social withdrawal. The onset of the disease is insidious and develops slowly, with a duration of at least two years, and gradually tends to mental decline. Generally, there are no positive symptoms such as hallucinations and delusions. 5.Undetermined: not conforming to the above four types, difficult to be typed or mixed type. 6.Other: such as childhood or late-onset schizophrenia, post-schizophrenic depression, or residual type, chronic decline type, etc.