Disease analysis: Normal blood pressure ranges from systolic blood pressure to 90-140mmhg (12.0-18.7kpa) and diastolic blood pressure to 60-90 mmHg (8.0- 12.0 kPa). Above this range, it may be hypertension or critical hypertension, below this range, it may be hypertension. Suggestion: Hello: Your blood pressure is still high. Under normal circumstances, the pulse pressure difference of normal people is 20~60 mm Hg (2.67 ~ 8.0 kPa). If it is greater than 60 mm Hg, the pulse pressure difference is too large, and if it is less than 20 mm Hg, it is too small. The main reasons for excessive pulse pressure difference are: (1) suffering from hypertension and arteriosclerosis, which weakens the elasticity of arterial wall, increases systolic blood pressure and decreases diastolic blood pressure; (2) Suffering from hypertension for a long time, leading to myocardial overload, heart enlargement or arterial valve insufficiency; (3) Suffering from hyperthyroidism or severe anemia.