If the patient’s systolic blood pressure is greater than 160mmHg and diastolic blood pressure is greater than 100mmHg, this time is relatively more dangerous, relatively more likely to have a stroke. Therefore, patients with high blood pressure must be actively given antihypertensive treatment to control the blood pressure within the ideal range. It is recommended that patients should keep their systolic blood pressure below 130mmHg and diastolic blood pressure below 80mmHg and above 65mmHg, which is relatively the safest. If the patient has already had a cerebral infarction, it is not recommended to control the blood pressure too low, if the blood pressure is too low, it will cause insufficient cerebral perfusion, but will aggravate the uncomfortable situation. As long as the patient’s blood pressure does not have a systolic blood pressure greater than or equal to 220 mmHg, or a diastolic blood pressure greater than 120 mmHg, it is not routinely carried out antihypertensive treatment.