In the hypertension classification, 150/100mmHg is classified as hypertension grade 2. If the blood pressure is 150/100mmHg every day for a longer period of time, the situation is more serious. If the blood pressure is not high under normal circumstances and reaches 150/100mmHg when emotions such as stress occur, it is not serious. If the blood pressure reaches 150/100 mmHg on a particular day or condition, occurs only once, and then the blood pressure is normal afterward or with medication, the risk is not high enough to be overly worrisome. High blood pressure itself is not scary. What is scary is the damage that blood pressure causes to the heart, brain, kidneys, fundic arteries and other target organs. Therefore, if the blood pressure stays at 150/100mmHg for many years in a row, it will definitely cause damage to the heart, kidneys and brain, increasing the probability of serious diseases such as cerebral hemorrhage, hypertensive nephropathy and other more serious diseases. Therefore, patients with long-term blood pressure of 150/100mmHg must consult a doctor in time, take medication as prescribed by the doctor, do not reduce or stop the medication without authorization, and pay attention to the changes in blood pressure.