Vertigo, dizziness and lightheadedness are common clinical symptoms with different clinical manifestations and different treatment principles, and they are not the same thing at all. However, many doctors and patients do not differentiate between them and misuse them for a long time, thus leading to misdiagnosis, misdiagnosis, and misdiagnosis of treatment from time to time. Vertigo, dizziness and lightheadedness have different manifestations. 1. Vertigo: The main manifestation is a sense of rotation, floating, drifting or tumbling of oneself or/and external objects in a certain direction that does not exist objectively, also known as motion hallucination. It can be triggered by factors such as overwork, excitement, insomnia, menstruation or excessive smoking and drinking. It is often accompanied by spontaneous nystagmus, misalignment, directional tilting, nausea, vomiting and other symptoms. 2, dizziness: The main manifestation is intermittent heavy head and light feet and gait instability (balance disorder), mostly in the action of walking, standing, sitting and lying or aggravated when using the eyes. 3, dizziness: often manifested as a persistent dullness of the mind and a sense of lack of clarity, accompanied by heavy head, dullness, headache, forgetfulness, fatigue and other neurological or chronic somatic disease symptoms, aggravated by exertion. It is usually seen in patients with neurasthenia or chronic somatic diseases. The damaged organs of vertigo, dizziness and lightheadedness are different The damaged organ of vertigo is the nervous system between the jugular crest of the vagus of the inner ear, which is responsible for balance in subjective turning movements, and the vestibular projection area of the brain. When artificial factors such as automatic body turning, examination of the semicircular canal or certain lesions cause excessive or decreased function or bilateral loss of contralateral side, and exceed the ability of brain regulation, it will cause vertigo attacks with signs and symptoms such as nausea, vomiting, nystagmus, unsteadiness in standing or tipping; the damaged organs of dizziness are the systems related to proprioception, vision, otolithography (ellipsoidal sac and balloon of the inner ear vagus), and so on. The damaged organ of dizziness is the cerebral cortex, which is in charge of higher human activities. The overall weakening of the function of the cerebral cortex caused by various organic and functional diseases or long-term mental work causes a sense of persistent dizziness and lack of clarity. As a result, vertigo, dizziness and lightheadedness are three different clinical signs caused by different damaged organs. If they are not differentiated, they will lead to wrong localization of the lesion, and wrong investigation and treatment will often occur, which should be alerted and taken seriously.