Dizziness can be caused by thick blood. Patients are advised to have their blood lipids checked as well as transcranial Doppler and head CT to determine the cause of dizziness, which may be due to cerebral ischemia or cerebral artery hypoperfusion or cerebral vascular spasm. Sometimes dizziness can be triggered by cervical spondylosis, or even by poor rest or a cold. If the patient is suffering from blood thickening, the first step is to provide symptomatic support treatment such as anti-atherosclerosis and lipid-lowering. If the patient still has dizziness on the basis of anti-atherosclerosis and lipid-lowering, it is necessary to find out whether the dizziness is caused by other factors. If the dizziness is caused by inadequate blood supply to the cerebral arteries, the patient can also take drugs such as blood-supporting and brain-clearing granules or brain-clearing and rejuvenating liquid in combination. If it is caused by cerebral vascular spasm, it is recommended to take oral Olybok. If it is caused by cervical spondylosis, acupuncture, physiotherapy and traction can be combined to treat it appropriately according to the type of cervical spondylosis.