Dizziness is a common clinical symptom, and it is one of the most common symptoms in neurology clinics, ranking second. Many dizziness diseases are almost known during the detailed consultation, which also prepares for the next step of physical examination. In the case of dizziness, our dizziness specialists often pay attention to the following aspects: 1. whether the dizziness is accompanied by a sense of rotation of visual objects or rotation of oneself or a sense of shaking/tilting in the outside world. We generally classify dizziness as vertigo, presyncope, lightheadedness, and dysequilibrium. This question is one of the first questions we neurologists ask when we encounter a patient with dizziness, and it is also one of the most important questions because we have to distinguish whether this is true vertigo or pseudovertigo, and there are two different ways of thinking about vertigo and non-vertigo diseases. If it is vertigo, we have to consider whether this is peripheral or central. If it is non-vertigo, i.e., a dizzy or groggy feeling, we have to consider whether many of them are related to medical diseases. Li Yancheng, Department of Neurology, Shanghai Tongji Hospital 2. Whether vertigo is episodic or persistent. If the vertigo is recurrent, our clinicians will consider whether it is BPPV, Meniere’s disease, vestibular migraine, etc. If it is the first attack and persistent, we will consider whether it is vestibular neuritis, posterior circulation infarction, vaginitis, etc. 3. Duration of vertigo attack. The duration of vertigo attack is very important for vertigo specialist. The duration of vertigo attack is often different for different vertigo diseases, which is very important for identifying vertigo diseases. If the duration of vertigo attack is measured in seconds and minutes, we mainly consider BPPV, vestibular paroxysm, superior semicircular fissure, ectolymphatic fistula, etc.; if it is measured in minutes, we mainly consider posterior circulation TIA, vestibular paroxysm, etc.; if it is measured in hours, the most common is Meniere’s disease; if the attack is measured in days, we mainly consider vestibular neuronitis, posterior circulation infarction, etc.; while the duration of vestibular migraine attack varies from minutes to days. 4. Triggering factors of vertigo attack. The most common one is position-related vertigo attack, i.e. vertigo can be induced when changing position, and the most common one is BPPV. In addition, we should also pay attention to sound induced, which is most common in superior semicircular canal cleft; induced when walking, we should consider bilateral vestibular disease; induced when turning head, we should exclude vestibular paroxysm, etc. 5. Whether the vertigo attack is accompanied by cochlear symptoms. If it is accompanied by tinnitus and hearing loss, the most classic clinical condition is Meniere’s disease. The other is vaginitis. If there are cochlear symptoms, it is often peripheral vertigo, but in elderly patients with vascular risk factors, we still need to pay attention to the possibility of AICA infarction. 6. Whether vertigo attacks are accompanied by neurological symptoms. This is the main concern of neurologists who encounter patients with vertigo, because it is important to distinguish between central vertigo and peripheral vertigo, which may lead to fatal risks. It has been concluded that the more “Ds” there are, the more central vertigo should be considered: Dizziness, Diplopia, Dysarthria, Dysphagia, Drop attack. 7. Whether the vertigo patient has any previous specific medical history. Any previous history of headache, especially migraine. Also pay attention to the presence of vascular risk factors, such as hypertension, diabetes, smoking, etc.