Do you know what "mental illness" is

First of all, we should distinguish several important concepts about mental illness in order to avoid misunderstanding. The first is the difference between mental illness and mental illness. Usually, we call people crazy, but in fact, we use the wrong terminology. Neuropathy refers to mental symptoms caused by cerebral palsy or a part of nervous system injury, and its pathogenesis is obviously caused by physiological system. Therefore, the patients with the disease are all people who see a doctor in the hospital neurology and neurosurgery. Comparatively speaking, mental illness means that the mental system is not damaged, but there are only mental symptoms. Therefore, according to the distinction between these two concepts, it is correct to call names with mental illness. There are two concepts about mental illness in clinical medicine: narrow sense and broad sense. Generally speaking, a madman refers to a mental illness in a narrow sense, which only refers to a severe mental patient with a certain degree of abnormal mental activity, the most typical of which is schizophrenia. Mental illness in a broad sense has a wider scope and can generally be divided into neurosis and severe mental illness (narrow mental illness). Many people often jokingly ask: Do you feel sick? If the answer is: of course I'm not sick. Everyone will laugh at him and say that mental patients say so. You may be put in prison. If the answer is: I am sick. Then someone will say: if you think you are sick, you should be locked up in a mental hospital and don't come out to harm people. This joke actually contains some basic concepts of psychiatric diagnosis. When a person has some mental discomfort, how to judge whether he has neurosis, serious mental illness or something else? One criterion is his own understanding of himself and his environment. For example, if a person who says he has auditory hallucinations comes to a mental hospital, the doctor will ask him: Do you think the songs you heard in class really exist? If the patient answers: Yes. I think they just want to interfere with my study and don't want me to do well in the exam. The doctor will roughly judge that the patient has some mental problems and will continue to diagnose. If the patient answers: I know they are not true, but these voices from nowhere are always in my ear, which makes me very upset. At this time, the doctor will advise the patient to have a physical examination of the brain and nerves to see if there are some physiological and pathological changes in the nerves that lead to this mental symptom, such as auditory hallucinations caused by a tumor in the brain compressing the nerves, which does not belong to the category of psychiatry. In other words, the main basis for judging whether a person has serious mental illness is whether the patient can truly reflect his environment. In medicine, this ability to reflect is called insight.