Blood pressure is divided into high pressure and low pressure, medical terms have systolic and diastolic blood pressure, with age, blood pressure gradually increase, adult blood pressure standard normal high pressure should be between 90-140mmHg, low pressure is between 60-90mmHg. In the case of a newborn, the blood pressure of a newborn child is not so high, high pressure is about 70mmHg, low pressure is about 34mmHg, so do not use the blood pressure of an adult to measure the blood pressure of a child. If by 1-6 months, blood pressure is also higher than before, above 70mmHg, diastolic blood pressure is about between 30-45mmHg, if by the period of 7-12 years old, the high pressure to 90-110mmHg, while the low pressure is between 60-90mmHg. The criteria for hypertension are high pressure ≥ 140 mmHg or (and) low pressure ≥ 90 mmHg, in which case it is called high blood pressure. If it is simply hypertension with a high pressure ≥ 140 mmHg, it is called simple systolic hypertension. If it is just low pressure ≥ 90 mmHg, it is called simple diastolic hypertension. Different cases also depend on the condition, but according to the age, the blood pressure increases gradually, and the systolic blood pressure increases more significantly than the diastolic blood pressure.