If the sudden onset of dizziness and spinning is associated with a change in the position of the head, it is considered benign paroxysmal positional vertigo, also commonly known as otoliths. The dizziness is episodic, occurring at specific head positions, and each episode usually lasts no more than one minute, and treatment can be given to reduce the symptoms by resetting the head. If the dizziness suddenly appears and the spinning continues without relief, it should be considered to be caused by cerebrovascular diseases such as ischemia in the posterior circulation, infarction in the cerebellar brainstem, or hemorrhage, and the patient should promptly visit a hospital for examination and treatment. If cerebral hemorrhage is considered to be the cause, dehydration should be given to lower the cranial pressure during the acute stage to prevent further bleeding. If cerebral infarction is considered to be the cause, it should be treated by improving blood circulation, activating blood circulation and removing blood stasis, and different options such as thrombolysis, fibrin-lowering, anticoagulation and antiplatelet can be chosen during the acute stage.