Medically reviewed guide · Last updated: 23 July 2026 · Reading time: approx. 9 min

Low blood pressure:
harmless or in need of treatment?

At a glance

What is it?A blood pressure below about 100/60 mmHg (hypotension) — common, often not a medical problem
Usually harmless?Yes — low blood pressure is often harmless in itself and even beneficial for the cardiovascular system
Common triggersPredisposition, lack of fluids, prolonged standing, heat — and very often medications
Warning signsConfusion, cold clammy skin, very rapid pulse, fainting with injury — then an emergency
Key distinctionDizziness only when standing up (orthostasis) vs. persistently low readings at rest
What to do?Stand up slowly, drink enough, exercise — treatment only if there are symptoms

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Table of contents

  1. What is low blood pressure?
  2. Harmless or in need of treatment?
  3. Causes & triggers
  4. Checking blood pressure & orthostasis yourself
  5. When to see a doctor?
  6. Diagnosis
  7. What you can do yourself
  8. How brite helps you
  9. FAQ
  10. Related topics

1. What is low blood pressure?

Low blood pressure (medically hypotension) is generally defined as readings below about 100/60 mmHg. Unlike with high blood pressure, however, this threshold is mainly a guide — what matters is not the number alone, but whether the low readings cause you symptoms.

Many people naturally have low readings and notice nothing at all. Others feel tired, have trouble concentrating, get cold hands and feet, or become dizzy when standing up quickly. It is precisely this dizziness on standing — known as orthostatic hypotension — that is the most common and most typical symptom.

The most important point first Low blood pressure is usually harmless in itself and often even beneficial for the heart and blood vessels. It only needs treatment if it causes you symptoms or drops suddenly and sharply. The most commonly overlooked cause is medications.

2. Harmless or in need of treatment?

With low blood pressure, a change of perspective is worthwhile: while high blood pressure damages the cardiovascular system over time, low blood pressure is considered rather protective — statistically, people with low readings have a lower risk of heart attack and stroke. A low reading on its own is therefore no cause for concern and not an illness.

Two situations should be kept apart:

  • Persistently low readings without symptoms: harmless, no need for treatment. Anyone who feels fit does not need to do anything.
  • Low readings with symptoms: dizziness, light-headedness, visual disturbances or near-fainting — here it is worth looking for the cause and taking countermeasures, above all to avoid falls.

It becomes critical when blood pressure drops suddenly and sharply — for example after a major loss of fluids, bleeding or a severe infection. This can lead to circulatory collapse or even shock (see the chapter "When to see a doctor").

3. Causes & triggers

Low blood pressure is often simply a matter of predisposition — especially in young, slim women. Alongside this, however, there are a number of triggers that can be readily identified and, in some cases, influenced.

  • Medications (very often overlooked): blood-pressure-lowering drugs such as Ramipril, diuretics such as Torasemide, certain psychotropic drugs (e.g. some antidepressants) as well as prostate and Parkinson's medications can lower blood pressure considerably.
  • Lack of fluids: not drinking enough, sweating a lot, diarrhoea or vomiting — the circulation lacks volume.
  • Prolonged standing and heat: the blood "pools" in the legs, and this is made worse in summer.
  • Standing up quickly (orthostasis): the circulation cannot keep up quickly enough.
  • Hormonal causes: such as an underactive thyroid or adrenal insufficiency.
  • Heart conditions: less common — e.g. heart failure or arrhythmias.

The link with new or changed medications in particular often goes unnoticed. If symptoms began after a change of medication, this is an important clue for the conversation with your doctor — but please never stop taking medications on your own initiative.

4. Checking blood pressure & orthostasis yourself

The most important self-test if low blood pressure is suspected is to measure it — ideally several times and at rest. Our guide to measuring blood pressure correctly explains how to do this properly.

  • Measure at rest: after sitting for 5 minutes, cuff at heart height, no talking.
  • Orthostasis test: first measure while lying down, then straight after standing up and again after 1–3 minutes of standing.
  • A red flag is: a drop in the upper value of more than 20 mmHg (or the lower value by more than 10 mmHg) on standing — often with dizziness.
  • Note it down: record readings, time, symptoms and current medications — ideal for the conversation with your doctor.

A single low reading without symptoms is no cause for concern. What matters is the overall picture of readings and symptoms over several days.

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With brite you record readings, symptoms and medications — the best basis for the practice to get to the bottom of the cause quickly.

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5. When to see a doctor?

Low blood pressure is usually harmless, but there are situations in which you should have it checked out or act immediately.

You should have it checked by a doctor promptly if the low blood pressure repeatedly causes you symptoms (dizziness, light-headedness, visual disturbances), if it has made you nearly or completely faint, or if the symptoms began after a change of medication. Newly occurring low blood pressure in older age should also be checked.

Call the emergency number 112 immediately In cases of very low blood pressure with confusion, cold clammy or pale skin, a very rapid pulse, after a major loss of fluids or bleeding — or with a faint accompanied by injury. These signs can indicate circulatory shock and are an emergency.

6. Diagnosis

To find the cause, the practice has simple and informative examinations at its disposal. It is important to describe the symptoms and current medication accurately.

ExaminationWhat it shows
History & medication checkSymptoms, triggers, blood-pressure-lowering drugs
Blood pressure lying down & standingOrthostatic hypotension (drop on standing up)
Long-term blood pressure measurement (24 h)Blood pressure course over everyday life
Blood testAnaemia, thyroid and salt levels, fluid balance
ECG / cardiac ultrasoundHeart as a cause, if needed
Schellong test / tilt tableCirculatory response to change of position
Table scrollable to the right

Often the cause becomes clear simply from looking at the medication list and a simple measurement lying down and standing. A well-kept blood pressure and symptom log makes it even easier to make the connection.

7. What you can do yourself

  • Stand up slowly: from lying down, first sit up briefly, then stand — this prevents dizziness. "Pumping" the legs before standing up helps the circulation.
  • Drink enough: about 1.5–2 litres a day (unless otherwise advised by your doctor), more in hot weather. A glass of water stabilises things in the short term.
  • Exercise: regular activity such as walking, swimming or cycling trains the blood vessels and the circulation.
  • Don't keep salt too low: unlike with high blood pressure, salt intake here may be normal — but discuss this with the practice.
  • Alternating showers and compression stockings can further stimulate the circulation or reduce the pooling of blood.
  • Have your medications reviewed: if symptoms began after a change, speak with the practice — never stop taking them on your own initiative.

Spot triggers, understand patterns

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How brite helps you with low blood pressure

Whether low blood pressure needs treatment is decided by the interplay of readings, symptoms and medications. Recording this over time gives the practice the crucial clues. brite makes that easy.

  • Health history — document blood pressure readings, symptoms and possible triggers (heat, prolonged standing, fluids) over time and bring them as an overview to your appointment. Track your history
  • Interaction check — checks whether blood-pressure-lowering drugs, diuretics or other preparations are lowering your blood pressure too much or combining unfavourably. Check now
  • Intake reminder — if medications are prescribed, brite reliably reminds you to take them and helps you keep track. Set up a reminder
  • Digital medication plan — all medications clearly in one place for your GP and specialist practice, so that blood-pressure-lowering drugs stand out quickly. To the medication plan
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FAQ: Common questions about low blood pressure

Usually not. Low blood pressure is often harmless in itself and even beneficial for the heart and blood vessels. It only becomes relevant if it causes you symptoms such as dizziness or fainting. What is dangerous is a sudden, sharp drop with confusion, cold skin or a rapid pulse — that is an emergency.
As a rule, readings below about 100/60 mmHg are considered low. However, this threshold is only a guide. What matters is not the number alone, but whether the low readings cause you symptoms. Many people with low readings feel completely healthy and need no treatment.
Only if it causes symptoms. Without symptoms, no treatment is needed — low readings are then not a sign of illness. For dizziness or circulatory problems, simple measures such as standing up slowly, drinking enough and exercise are often enough. Medications are only rarely considered, and only after medical assessment.
Yes, this is a very common and often overlooked cause. Blood-pressure-lowering drugs, diuretics and certain psychotropic drugs can lower blood pressure considerably. If symptoms began after a new prescription or a change of dose, raise this with the practice — but never stop taking medications on your own initiative.
When you stand up quickly, blood briefly pools in the legs and blood pressure falls. If the circulation cannot keep up quickly enough, you briefly feel dizzy or your vision goes black. This is called orthostatic hypotension. Standing up slowly, moving the legs beforehand and drinking enough usually prevent it well.
In the short term, one or two glasses of water, sitting or lying down and raising the legs help. Movement such as wiggling the toes or crossing and tensing the legs also gets the circulation going. In the long term, drinking enough, regular exercise and standing up slowly are the most effective measures.
Yes. Especially in the first half of pregnancy, blood pressure is often lower due to the hormonal changes, which can promote dizziness. This is usually harmless. In cases of severe dizziness, fainting or worries, however, it should be raised and checked during your antenatal care.
Call the emergency number 112 immediately in cases of very low blood pressure with confusion, cold clammy or pale skin and a very rapid pulse, after a major loss of fluids or bleeding, or with a faint accompanied by injury. These signs can indicate circulatory shock and must be treated immediately.
Caffeine can temporarily raise blood pressure slightly, so a cup of coffee can give a short-term boost. However, the effect is small and does not last long. It is not suitable as a permanent solution. More important are drinking enough, exercise and standing up slowly — and, for persistent symptoms, medical assessment.

10. Related topics

Dizziness Fainting High blood pressure Ramipril Torasemide Measuring blood pressure correctly

Sources

  1. gesundheitsinformation.de (IQWiG): Low blood pressure (hypotension). gesundheitsinformation.de
  2. German Heart Foundation: Low blood pressure – when it needs to be treated. herzstiftung.de
  3. German Society of Neurology: Diagnosis and treatment of orthostatic hypotension. dgn.org

This article is for general information and does not replace medical advice, diagnosis or treatment. In cases of very low blood pressure with confusion, cold clammy skin, a very rapid pulse or a faint accompanied by injury, please call the emergency number 112 immediately.