Dizziness is a general concept that involves the treatment of many clinical disciplines and can be divided into three major symptoms, which are beneficial for patients to consult professional departments for accurate medical treatment. 1. Vertigo: It is a subjective illusion caused by a person’s spatial orientation disorder, and the illusion of judgment of one’s own surroundings and position. Patients may feel that the surrounding scenery is rotating and they may also be rotating. The attack is often accompanied by nausea, vomiting, cold sweats and other symptoms of the vegetative nervous system. Preferred ENT department for consultation. 2. Dizziness: It is a feeling of swaying, floating, lifting and lowering, and lightness of the head and feet, without the feeling of spinning. This may be a manifestation of vertigo, or it may be a manifestation of internal diseases such as anemia and cardiovascular diseases. The main reason for consultation is internal medicine. 3.Black haze in front of the eyes: This is a transient visual blurring or even temporary loss of consciousness in front of the eyes, which is mostly caused by transient cerebral ischemia. Neurology is the first choice for consultation. What are the causes of vertigo? There are many kinds of diseases that cause vertigo, about hundreds of diseases can cause vertigo, and the causes of different diseases are different and need to be diagnosed differently by clinicians. According to the location of the lesion causing vertigo, it can be roughly divided into two categories: peripheral vertigo and central vertigo. Peripheral vertigo accounts for about 70% of cases, and most peripheral vertigo is related to our ear diseases and needs to be seen in the ENT department of a hospital. Peripheral vertigo attacks are mostly accompanied by tinnitus, changes in hearing, and vegetative nervous system symptoms such as nausea, vomiting, cold sweats, etc. There are also many vertigo related to postural changes. Central vertigo is caused by brain tissue and brain nerve diseases, such as cerebrovascular lesions like posterior circulation ischemia, and it accounts for about 30% of all vertigo patients. What is benign paroxysmal positional vertigo? It is a transient sensation of dizziness that occurs when the head tilts in a certain direction and is caused by excitation of the balance organs in the ear, and it lasts for only a few tens of seconds without ear symptoms such as tinnitus and hearing changes. This excitation is caused by the dislodgement and displacement of calcified plaques in the inner ear, commonly known as otoliths. Often the position of this irritation is relatively constant, and in most cases there is no obvious trigger for the onset. The onset of otoliths is accompanied by nausea, panic, chest tightness, and cold sweat, and after the onset, there is a sense of shaking, floating, lifting, and light-headedness. Otoliths are more common in vertigo, and the disease has a high incidence, accounting for about 20%-40% of all peripheral vertigo and 9% of the elderly population, with a higher incidence in women than in men. Although it is an otolaryngological disease, it is often first diagnosed in neurology, and is easily diagnosed as transient cerebral ischemia, hypertension, and cervical vertigo, which can delay treatment. The majority of otoliths can be cured by combining medication with manual repositioning, while a few require surgery.