Mental illness is a serious category of psychological disorders in which people with mental illness show varying degrees of abnormalities in perception, volition, emotion, and behavior. Patients with mental illness cannot study, work and communicate normally. It is important to understand the signs and symptoms of psychosis in order to detect and prevent psychosis early! So what are the symptoms of prepsychotic patients? 1, association disorder The lack of coherence and logic in the process of thinking and association is the most characteristic disorder of schizophrenia. It is characterized by the patient’s scattered or splitting thought associations and lack of specificity and realism in a clear conscious situation. 2. Abnormal behavior The patient’s daily behavior gradually becomes bizarre, doing things that are difficult to understand, preferring to be alone, often chasing the opposite sex, not knowing shame, frothing and dazing, laughing to oneself, or sleeping with their heads covered, becoming lazy, staying out at night, etc. 3.Emotional changes The patient’s emotions become indifferent, without the enthusiasm of the past, indifferent to relatives and friends, suddenly become uninterested in the surrounding things, or because of the slightest thing to lose their temper, confused sadness and tears or surprise, etc. 4.Sleep changes Gradually become difficult to sleep, easily wake up, or do not sleep deeply, nightmares throughout the night, or sleep for too long. 5.Sluggish reaction The patient does not have the previous sensitivity to anything and associates some things around him with him, and one is directed at him. If he sees others talking, he thinks they are talking about him, and if they look at him by chance, he thinks they are unkind. Some patients even think that television, newspapers, etc. are related to him, often meticulously concerned about the every move of others. 5.Language abnormalities When talking with others, they often do not speak before and after, and they do not know what to express for half a day, or they suddenly stop talking and do not know what to say. 6. Hallucinatory delusions Hallucinations are mostly hallucinations of hearing, where the patient hears people speaking to her in the air or on the room, or hears some people talking about her. The patient’s behavior is often influenced by the hallucinations, and even obeys the “instructions” of the hallucinations to make some dangerous actions. Hallucinatory delusions can lead to sudden behavioral changes, with sudden onset of psychotic symptoms such as suicide, self-injury, impulsivity, running away, and lack of self-awareness. The treatment of psychosis is a gradual process. Once the above symptoms appear, remember to go to a professional hospital for diagnosis and active treatment. Family members should remember not to treat blindly, but to have firm confidence in the patient and encourage the patient to cooperate actively for early recovery.