Dizziness, also known as dizziness, is a subjective sensory abnormality. It can be divided into two categories: one is rotational vertigo, which is mostly caused by vestibular nervous system and cerebellum dysfunction, mainly caused by dumping feeling, feeling shaking or scene rotation. Second, general dizziness, mostly caused by some systemic diseases, is mainly dizziness and feels top-heavy. Dizziness is a common symptom. In addition to the imbalance of ear pulp, there are many reasons, such as drug influence and arrhythmia.

1. Rotational vertigo can be divided into peripheral vertigo and central vertigo according to the etiology.

Peripheral vertigo: refers to vertigo caused by labyrinth of inner ear or vestibular neuropathy. Common in Meniere's disease, labyrinthitis, drug-induced vertigo (caused by streptomycin or gentamicin) and vestibular neuritis.

Central vertigo: refers to vertigo caused by diseases of brain stem, cerebellum, brain and spinal cord. It is common in vertebrobasilar insufficiency, intracranial tumor, intracranial infection, multiple sclerosis, vertigo epilepsy and traumatic vertigo.

2. General vertigo

Cardiogenic vertigo: common in arrhythmia and cardiac insufficiency.

Pulmonary vertigo: it can be seen in pulmonary insufficiency caused by various reasons.

Ophthalmic vertigo: common in ametropia, fundus arteriosclerosis, hemorrhage and ophthalmoplegia.

Blood pressure vertigo: high blood pressure or low blood pressure can cause dizziness.

Others: anemia, cervical spondylosis, acute fever, gastroenteritis, endocrine disorders, neurosis, etc. can all cause dizziness.