What Is the Blood Pressure Range for Hypotension

Blood pressure is generally considered low when the systolic reading is 90 mmHg or lower and the diastolic reading is 60 mmHg or lower. A measurement below 90/60 mmHg is typically classified as hypotension. However, whether this reading indicates a pathological condition varies from person to person. Many adolescents and slender women, for example, may naturally have blood pressure below this threshold while at rest. In such cases, it is often a normal physiological variation rather than a medical concern, as it does not lead to reduced blood flow to vital organs like the heart, brain, or kidneys, nor does it cause noticeable symptoms.

Understanding the Context of Low Blood Pressure

It's important to consider the individual's baseline blood pressure when evaluating hypotension. Some people who normally have higher blood pressure may experience symptoms even if their readings remain above 90/60 mmHg. If their pressure drops significantly from their usual levels, it can lead to complications such as reduced kidney function, angina, dizziness, fatigue, or general weakness. This type of drop—especially if sudden—can be a sign of pathological hypotension and requires prompt medical attention to prevent further health issues.

When to Seek Medical Help

If you experience symptoms like lightheadedness, fainting, confusion, or shortness of breath along with low blood pressure, it's important to consult a healthcare professional. These signs may indicate an underlying condition that needs treatment. Monitoring your blood pressure regularly and understanding your personal baseline can help in identifying abnormal changes early.