Vertigo is caused by damage to the organs that govern balance, and there are many reasons for this. The eighth pair of cranial nerves, the vestibular nerve, can show symptoms of vertigo after damage, as follows: 1) from the periphery, there are otogenic ones, because they are innervated by the vestibular auditory nerve, which can lead to vertigo; 2) from the center, damage to the nucleus accumbens, such as the brainstem, can lead to vertigo, and infarction, hemorrhage, inflammation, degenerative diseases, etc. can lead to vertigo; 3) When the associated nerve fibers are damaged, vertigo will also appear, for example, the fibers associated with the eyes are finally connected to the vestibular neurons through the medial center in the brainstem, and vertigo will also appear when there is blurred vision, blurred vision, or poor distance change; 4. Some systemic diseases, such as hypoglycemia and poisoning, will also manifest as vertigo when the associated nerve medial center is damaged. Therefore, if the vestibular nerve and its associated nerve contact fibers are affected, vertigo will be manifested.