Low Blood Pressure: When to Get Checked and Which Results to Watch
Learn about low blood pressure, its causes, symptoms, and when to seek medical advice. Understand which results to watch and what they mean for your health.
Low blood pressure, also known as hypotension, is when your blood pressure readings are lower than normal. While it might not always be a cause for concern, it can sometimes indicate underlying health issues. Understanding when to get checked and which results to watch can help you manage your health effectively.
What is Low Blood Pressure?
Blood pressure is the force of your blood pushing against the walls of your arteries as your heart pumps blood. It's measured in millimeters of mercury (mmHg) and recorded as two numbers: systolic pressure over diastolic pressure. Low blood pressure, or hypotension, is typically defined as a reading lower than 90/60 mmHg. However, what's considered low can vary from person to person, depending on their normal blood pressure range and overall health.
Why Low Blood Pressure Matters
While low blood pressure is not always a problem, it can sometimes lead to symptoms such as dizziness, fainting, blurred vision, nausea, fatigue, and difficulty concentrating. In severe cases, it can be life-threatening, especially if it causes shock, a condition where your organs don't get enough blood and oxygen.
Causes of Low Blood Pressure
There are several potential causes of low blood pressure, including dehydration, prolonged bed rest, nutritional deficiencies, heart problems, endocrine disorders, severe infection (septicemia), and certain medications. It can also occur naturally in healthy individuals, particularly athletes or those who engage in regular physical activity.
How to Read Blood Pressure Results
Understanding your blood pressure readings is key to monitoring your health. The first number, systolic pressure, measures the pressure in your arteries when your heart beats. The second number, diastolic pressure, measures the pressure in your arteries when your heart rests between beats. A reading below 90/60 mmHg is generally considered low. However, the significance of low blood pressure varies depending on whether you experience symptoms and your overall health.
When to See a Doctor
You should consider seeing a doctor if you frequently experience symptoms of low blood pressure, such as dizziness, fainting, or fatigue. It's especially important to seek medical advice if these symptoms interfere with your daily activities or if you have a sudden drop in blood pressure. Additionally, if you have an underlying health condition or are taking medication that could affect your blood pressure, regular monitoring and consultation with your healthcare provider are advisable.
Frequently Asked Questions
What are the symptoms of low blood pressure? Low blood pressure symptoms can include dizziness, fainting, blurred vision, nausea, fatigue, and difficulty concentrating.
Can dehydration cause low blood pressure? Yes, dehydration can lead to low blood pressure because it reduces the volume of blood in your body, lowering the pressure against your artery walls.
Is low blood pressure always a cause for concern? Not always. Some people naturally have low blood pressure without any symptoms. However, if you experience symptoms, it’s important to consult with a healthcare provider.
What should I do if I feel dizzy due to low blood pressure? If you feel dizzy, sit or lie down immediately to prevent falling. Drinking water and resting can help alleviate symptoms. If dizziness persists, seek medical advice.
Can low blood pressure be treated? Treatment depends on the cause. It may involve lifestyle changes, dietary adjustments, or medication. Consulting with a healthcare provider can help determine the best approach.
When to See a Doctor
It's important to consult a doctor if you experience frequent symptoms of low blood pressure, such as dizziness or fainting. Seek immediate medical attention if you have a sudden drop in blood pressure, especially if accompanied by shock symptoms like confusion, cold or clammy skin, rapid breathing, or a weak pulse.
Decisions about your health should always be made in consultation with your healthcare provider.
Read this in another language
This explainer is queued for our doctor panel and hasn't been individually reviewed yet. It's general information, drawn from standard references - always confirm decisions with your own clinician.