If you’ve been told your reading is low, it helps to see exactly how mild and severe hypotension differ, rather than treating “low” as one single category.
Disclaimer: The information in this article is for general guidance only and does not constitute medical advice. Always consult a qualified healthcare professional about your own health and do not make changes to treatment or medication based solely on what you read here.
Key Takeaways
- Low blood pressure exists on a spectrum from mild to severe.
- Mild hypotension often causes no symptoms at all.
- Severe hypotension can indicate a medical emergency.
- Age can affect how noticeable symptoms are at a given reading.
- This chart focuses specifically on low readings, separate from the general blood pressure chart.
Mild vs Severe Hypotension by Range
A low blood pressure chart can help you understand where your reading sits and when it may need attention. In general, blood pressure below 90/60 mmHg is considered low. Here’s how the categories break down.
Mild Hypotension
Readings just below 90/60 mmHg, without significant symptoms, are generally considered mild and often don’t need treatment, particularly if this is a normal baseline for you.
Moderate Hypotension
Readings noticeably lower, particularly when accompanied by dizziness or fatigue, sit in a moderate category worth discussing with your GP, especially if they’re a new development.
Severe Hypotension
Very low readings, especially alongside fainting, confusion or a weak rapid pulse, fall into severe territory and may indicate shock, which needs emergency assessment. Our [Low Blood Pressure] page covers when this becomes an emergency in full.
An Age-Aware Note
Here’s why age is worth factoring in.
Why Age Matters Here
Older adults are often more sensitive to drops in blood pressure, meaning a reading that a younger person tolerates without symptoms might cause noticeable dizziness or falls risk in someone older.
This chart is specifically about the low end of the spectrum, for the full picture across all categories, our [Blood Pressure Chart] page covers normal through to high as well.
Frequently Asked Questions
Here are quick answers to some common questions about the low blood pressure chart.
What is considered mild low blood pressure?
Readings just below 90/60 mmHg without noticeable symptoms are generally considered mild and often don’t require treatment.
What is considered severe low blood pressure?
Very low readings accompanied by fainting, confusion or a weak rapid pulse are considered severe and may need emergency care.
Does the low blood pressure chart differ for older adults?
The categories are the same, but older adults are often more sensitive to the effects of a low reading, making monitoring particularly worthwhile.
Is there a single number that defines dangerously low blood pressure?
There isn’t a single universal number, symptoms alongside the reading matter as much as the figure itself when judging severity.
