In fact, dizziness is a very common symptom in human beings, and can be broadly divided into dizziness and vertigo; a. Dizziness: refers to the feeling of dizziness, the patient always has an indefinable feeling of dizziness, a feeling of falling weight, often poor sleep, mental fatigue and other symptoms, common causes include cerebral arteriosclerosis, cerebral artery blood supply deficiency, cervical spondylosis and other causes, usually a chronic disease, you can choose a neurologist Further assessment of cerebrovascular and cervical spine, such as cranial Doppler, carotid artery and vertebral artery ultrasound, etc.; Guangdong Provincial Hospital of Traditional Chinese Medicine, Department of Encephalopathy, Zhaoyuan Qi Second, vertigo: is a feeling of spinning, often sudden onset, patients feel like seasickness, seasickness, discomfort will be particularly obvious, often accompanied by nausea and vomiting, palpitations and panic, and even some have slurred speech, limb weakness and other symptoms. The common causes are insufficient blood supply to the basilar artery, otoliths, and stroke (cerebellum or brainstem), so it is important to seek prompt medical attention.