How low is considered hypotension?
Aug 24, 2022
Source: Cainiu Health
Dr. Li Man
Introduction
Hypotension is defined as a systolic blood pressure below 90 mmHg and a diastolic blood pressure below 60 mmHg. The normal blood pressure range is a systolic pressure of 90–140 mmHg and a diastolic pressure of 60–90 mmHg. If blood pressure falls below the normal range—specifically, if systolic pressure is below 90 mmHg—it is essential first to determine whether the hypotension is physiological or pathological.
Many people experience hypotension (low blood pressure), and its incidence varies depending on individual health conditions; however, it is primarily caused by low blood pressure itself. Hypotension is a common condition drawing widespread concern in modern society. So, what blood pressure values constitute hypotension?
What Blood Pressure Values Indicate Hypotension?
Hypotension is defined as a systolic blood pressure below 90 mmHg and a diastolic blood pressure below 60 mmHg. The normal blood pressure range is a systolic pressure of 90–140 mmHg and a diastolic pressure of 60–90 mmHg. If blood pressure falls below these normal thresholds—specifically, if systolic pressure drops below 90 mmHg—it is essential first to determine whether the condition represents physiological (benign) or pathological (disease-related) hypotension. For individuals with relatively weaker constitutions, blood pressure may remain below 90 mmHg without significantly impairing normal physiological function or causing noticeable clinical symptoms—such as dizziness, visual darkening (e.g., “blacking out”), or palpitations. This is classified as physiological hypotension, requiring no specific medical treatment; instead, gradual increases in physical exercise, improved nutrition, adequate hydration, and, when necessary, increased dietary salt intake are recommended.
To prevent hypotension in daily life, one should maintain balanced nutrition, adhere to regular routines, and engage in appropriate physical activity. Elevating the head slightly during sleep can help alleviate hypotensive symptoms. Upon waking, rise slowly from bed—when transitioning from lying to sitting, do so gradually and avoid sudden or forceful movements. Individuals with varicose veins in the lower limbs may benefit from wearing compression stockings or snug-fitting pants to enhance venous return.
In daily life, maintain disciplined eating habits: avoid spicy or highly stimulating foods, and refrain from overeating or binge eating. Also avoid staying up late. We hope this information proves helpful to you.
