How much should 14-year-old boys have normal blood pressure?

14-year-old boy's normal systolic blood pressure range is 90-139mmHg, diastolic blood pressure is 60-89mmHg.

Blood pressure refers to the blood flow in the blood vessel is the lateral pressure acting on the blood vessel wall per unit area, is one of the basic vital signs. Normal systolic blood pressure is 90-139mmHg, diastolic blood pressure is 60-89mmHg, if systolic blood pressure ≥140mmHg, diastolic blood pressure ≥90mmHg is measured 3 times in succession, it indicates that the child has hypertension, which may be related to genetic factors, poor lifestyle, kidney disease or cardiovascular disease. If systolic blood pressure