For blood pressure is a more dangerous state if it suddenly rises above 180mmHg. Because the diagnostic criteria for hypertensive emergencies in many populations is more than 180/120mmHg, so if the patient’s blood pressure is above 180mmHg, attention must be paid to timely lowering of blood pressure, which may lead to cerebrovascular abnormalities, such as subarachnoid hemorrhage, cerebral hemorrhage and serious cardiac insufficiency, renal insufficiency, etc. However, if there are people who usually have low blood pressure, such as usually in the 100mmHg or so, and suddenly increase to 160mmHg, is also more dangerous, mainly depends on the specific patient’s blood pressure base value. For blood pressure must pay attention to the timely lowering of blood pressure, generally choose the stage control of blood pressure lowering, to stabilize the patient’s blood pressure to normal.