Psychiatric patients are often referred to as patients with mental disorders in clinical practice. Common symptoms include perceptual disorders, thought disorders, disorientation disorders, affective disorders and other manifestations. Due to the different causes of patients, the clinical symptoms also have differences: 1, perceptual disorders: including hypoesthesia, sensory hypersensitivity, internal sensory discomfort, refers to the external or internal stimulus perception ability is reduced or hyperactive, or the appearance of illusions and hallucinations; 2, thinking disorders: may be thinking form disorders and thinking content disorders, manifested as thinking association speed is too fast or too slow, incoherent thinking, thinking interruption, delusions, etc.; 3, attention disorders: manifested as excessive attention to the thinking content disorders, such as the thinking interruption, the occurrence of delusions. 3, attention disorders: manifested as excessive attention to certain things, the inability to focus, constantly shifting attention, or the current can only pay attention to a small thing and other changes; 4, memory disorders: such as suddenly remember what has been forgotten, or sudden memory loss, or even abnormal memory of the past, also manifested as fictitious and false memory; 5, intellectual disorders: there are intellectual development Disorders and dementia, mental retardation is generally congenital underdevelopment, dementia for brain atrophy or trauma resulting in decreased understanding, judgment; 6, disorientation: inadequate cognition of time, place, task and their own state, such as wearing cotton clothes in summer, sleep during the day and night activities and other abnormalities; 7, emotional disorders: including emotional high, low mood, emotional indifference, anxiety, inexplicable fear, easy to be Irritated, etc., when the sudden occurrence of emotional abnormalities, should be alert to the possibility of psychosis; 8, willpower disorders: manifested as a sudden stubborn to do a certain thing, or a sudden lack of aggressiveness, and sometimes even two emotions at the same time; 9, movement behavior disorders: behavior, language, thinking, emotion highly consistent or highly uncoordinated may be behavior disorders, movement disorders are a significant reduction in physical activity, do not speak, do not move, do not eating and drinking, or constantly imitating and repeating some strange behaviors; 10. Disorders of consciousness: patients’ ability to perceive the surrounding environment and their own state is impaired, mainly divided into decreased wakefulness and changes in the content of consciousness. It can be manifested as coma, drowsiness, change of consciousness content, and also impaired cognitive function, decreased attention, blurred consciousness, as well as hallucinations, and easily become emotionally agitated and restless. In addition, most patients also experience a range of symptoms such as headache, vertigo, seizures, syncope, visual and hearing impairment, nystagmus, paralysis, myasthenia gravis, ataxia, and abnormal gait.