The examination program of neurology needs to be decided according to the specific conditions of the patient. Commonly used clinical tests, such as CT of the brain and MRI of the skull, which mainly includes MRI and MRA, combined CTA of the head and neck when necessary, as well as ultrasound of cervical blood vessels, electroencephalography, electromyography, lumbar puncture and cerebrospinal fluid examination. In addition, there are blood tests, such as routine blood tests, liver function, kidney function, blood lipids, blood sugar and homocysteine. In addition, the doctor will also conduct a physical examination according to the patient’s clinical presentation, such as measurement of cognitive function, muscle strength, muscle tone, and ataxia.