High pressure is systolic blood pressure, systolic blood pressure is lower than 100 mmHg, but greater than 90 mmHg or more is normal; but if it is lower than 90 mmHg or less is not normal.
1. Normal blood pressure: Normal human blood pressure systolic blood pressure between 90~140 mmHg, systolic blood pressure is normal as long as it is not lower than 90 mmHg.
2. Abnormal blood pressure: Systolic blood pressure below 90 mmHg is abnormal and can be diagnosed as hypotension. There are physiological and pathological causes of hypotension, such as physiological causes, such as being too thin, physical factors, etc. Pathological hypotension can be seen in a variety of diseases, such as anemia, coronary heart disease, cancer and so on.
Measurement of blood pressure needs to be averaged over and over again, and an occasional measurement of abnormal blood pressure is not a basis for diagnosis.