Dizziness is a relatively common symptom in clinical practice and is not an independent disease, but a clinical symptom of certain diseases. It can be judged by the characteristics of the onset of dizziness, as well as the timing and other symptoms that accompany it. There are central and peripheral causes of dizziness, and it is important to exclude potentially more dangerous diseases. For central causes, acute cerebrovascular disease, such as infarction or hemorrhage in the cerebellum or brainstem, is considered. It is recommended to have a CT scan of the head to avoid delays. To consider the cause of dizziness in women, it is generally recommended that patients with chronic anemia after menstruation may also show symptoms of dizziness. In addition, peripheral vertigo should be considered. Common diseases include benign paroxysmal positional vertigo, but also Meniere’s syndrome, vestibular neuronitis and other diseases.