High pressure refers to systolic blood pressure, 230 means 230mmHg, high pressure without dizziness, may indicate that the human body has adapted to such a high blood pressure, but also need to lower blood pressure treatment. Blood pressure is measured three times on different days, and blood pressure is greater than or equal to 140/90mmHg, which can be diagnosed as high blood pressure. The increase in blood pressure is more pronounced in a short period of time, and the presence of a transient increase in cranial pressure will be characterized by typical symptoms of dizziness. Systolic blood pressure 230mmHg without dizziness symptoms. It may indicate that the blood pressure has been high for a long time and the body has tolerated it. Systolic blood pressure of 230mmHg can easily lead to target organ damage such as heart, brain and kidney, and intravenous pumping of nitroglycerin or sodium nitroprusside. Systolic blood pressure 230mmHg, need to be hospitalized immediately, according to the doctor’s advice to improve the examination, hypertension 5, renal function, adrenal CT to rule out secondary hypertension, in the guidance of a professional physician to lower the pressure treatment.