Headache, dizziness, unsteadiness, one may be caused by hypertension, to measure blood pressure, if the systolic blood pressure > 140mmHg, diastolic blood pressure > 90mmHg, clinically known as hypertension, patients with symptoms can apply some antihypertensive drugs to regulate, the elderly generally preferred calcium antagonists, commonly used drugs amlodipine and nifedipine extended-release tablets, nifedipine controlled-release tablets. Young people generally prefer ARB-type blood pressure lowering drugs, commonly used are valsartan and irbesartan, try to make the blood pressure as smooth as possible, not to be high and low. If the patient has cerebellar and brain stem lesions can also appear, commonly seen in cerebrovascular disease, also seen in brain tumors and inflammation, cerebrovascular disease generally acute onset, brain tumor patients chronic onset, cranial CT or MRI can be clearly diagnosed. Patients with encephalitis may also have fever, which is usually subacute in onset. Patients may also have headache, dizziness and weakness of the limbs, and if necessary, electroencephalography, cerebrospinal fluid extraction for biochemical and routine bacteriological examination can be clarified.