A high pressure of 105 mmHg and a low pressure of 75 mmHg is normal blood pressure. Normal blood pressure fluctuates between 90-139 mmHg systolic and 60-89 mmHg diastolic. if the systolic blood pressure exceeds 140 mmHg and the diastolic blood pressure exceeds 90 mmHg, it is clinically called hypertension. If the systolic blood pressure is below 90mmHg and diastolic blood pressure is below 60mmHg, it is clinically called hypotension. Systolic pressure of 105mmHg and diastolic pressure of 75mmHg are clearly within the normal range of blood pressure fluctuations and are considered normal blood pressure. Normal human pulse pressure fluctuation range is 20-30mmHg, apparently systolic pressure 105mmHg, diastolic pressure 75mmHg, the difference between the two is the pulse pressure equal to 30mmHg, is also within the normal pulse pressure fluctuation range. If the patient does not have any discomfort, check the ECG or 24-hour ambulatory ECG, ambulatory blood pressure, cardiac ultrasound, etc., are not found to be abnormal, focus on follow-up, regular physical examination, find the problem and solve it in time.