There is no such thing as average blood pressure in clinical practice; the general condition is normal blood pressure. Blood pressure consists of systolic and diastolic blood pressure. The normal range is 90 to 139 mmHg for systolic blood pressure and 60 to 89 mmHg for diastolic blood pressure. Blood pressure is the lateral pressure acting on the wall of a blood vessel per unit area as the blood flows through the vessel and is an important indicator used to assess the presence of hypertensive disorders. The normal adult systolic blood pressure range is 90 to 139 mmHg and the diastolic blood pressure range is 60 to 89 mmHg. Symptoms such as a decrease in blood pressure or an increase in blood pressure are considered abnormal. Adults over 18 years of age are hypertensive if their systolic blood pressure is ≥140 mmHg and/or diastolic blood pressure is ≥90 mmHg without antihypertensive medication. The presence of hypertension may lead to the emergence of various complications, such as coronary heart disease, if it is not treated promptly and symptomatically. If the blood pressure is lower than 90/60 mmHg, it is hypotension. If the blood pressure is too low, it can cause ischemia and hypoxia of the corresponding organs, such as cerebral thrombosis. Therefore, no matter whether high blood pressure or low blood pressure occurs, the relevant treatment should be carried out in time to effectively control the blood pressure and reduce the harm to the body. In normal life, you should maintain good habits, avoid exertion and staying up late, eat more fresh fruits and vegetables, and eat less oil and salt-heavy food. If you have been diagnosed with hypertension or hypotension, you should follow the doctor’s instructions for standardized treatment and regular follow-up.