If the blood pressure is measured 90/63mmHg is normal, but is the low limit of normal. The general human blood pressure high pressure is a systolic pressure of 90-140 mmHg and low pressure is a diastolic pressure of 60-90 mmHg is the normal range. It is required to measure the blood pressure of both upper extremities. If the blood pressure of one side is low, such as 90/63 mmHg, while the other side is normal and the pressure difference is greater than 30 mmHg, it is possible to have aortitis. It is also possible in young women when the blood pressure is measured at 90/63 mmHg with no clinical symptoms. If a patient with previous high pressure has 90/63mmHg, they will have hypotension and should be seen by a regular doctor at a regular hospital and need to adjust their antihypertensive medication.