Auditory hallucinations, also known as phantom hearing, have a wide variety of contents and manifestations. Patients are hearing sounds that do not actually exist, which can be expressed as speech or singing sounds. The most common is verbal hallucinations, and the most common diseases are the following: 1. organic mental disorders, which are likely to occur when organic damage in the brain involves the temporal lobe or frontal lobe, such as cerebrovascular disease, encephalitis, and traumatic brain injury. In addition to auditory hallucinations, patients often have other personality and behavioral abnormalities, mostly gibberish and sleep disorders; 2. schizophrenia, which is the most common functional psychiatric disorder, patients mostly have a family history and are related to heredity. Most common verbal hallucinations, which occur when consciousness is clear; 3, major depressive disorder, in which verbal hallucinations may occur when the patient is severely depressed, and the content is mostly derogatory and ridiculing of the patient’s behavior; 4, hysteria, which is a mental illness that occurs under relatively strong emotional stimulation, vivid auditory hallucinations with more specific content, and also often with horror overtones.