Causes of low blood pressure

Some people naturally have lower than average blood pressure, without knowing why. Be that as it may, there is very likely a hereditary tendency, because when the mother is affected, the girl is so often. Hypotension is also more common in young women, pregnant women and the elderly. When there are no symptoms, hypotension is usually harmless. It would even offer protection against diseases favored by hypertension.

However, other factors can lead to hypotension, namely:



too much dehydration


-the taking of certain drugs (Psychotropic drugs, anti depressants, anti-arrhythmics, antihypertensives, diuretics, vasodilators)

-the consumption of alcohol and / or cannabis

– eating disorders

– diseases of the nervous system (Parkinson’s disease, multiple sclerosis)


Symptoms of hypotension

Hypotension usually has no symptoms: it is asymptomatic. However, some warning signs can give warning. It is :

– dizziness

-A feeling of weakness

-Troubles of vision and concentration

-Buttled with heat


-Firing in serious cases

Diagnosis of arterial hypotension

Hypotension is mostly asymptomatic. This is the reason why it is difficult to diagnose. Indeed, tension measurements by tensiometer are generally performed in a sitting position while the standing position is most effective in case of a drop in voltage. It should also be added that the anxiety caused by an examination at the doctor can also temporarily raise the tension and distort the result.

To make a diagnosis, doctors rely mainly on symptoms. They usually appear when the systolic pressure (blood pressure when the heart contracts) is around 90 mmHg (millimeters of mercury).

To have a good diagnosis, it is recommended to use a technique: the ambulatory measurement of the blood pressure. 24 Hour Ambulatory Blood Pressure (ABPM) or Blood Pressure Holter is a small blood pressure recording device worn on the waist and attached to a cuff around the arm. It provides both diagnostic and therapeutic decision-making and, in some cases, gives a much more objective assessment of the effectiveness of treatment than the mere measure of consultation.

Hypotension and pregnancy

Hypotension is particularly common during pregnancy, this is due to hormonal changes. Indeed, during the first trimester of pregnancy, the amount of progesterone increases. However, progesterone has a tendency to relax the lining of the blood vessels, forcing them to dilate, so that the blood begins to circulate with less force.

You are tired, rolled, exhausted, tired. Rest assured, there is no real danger except to make a bad fall. To fight against hypotension during pregnancy, then lie on the left side, legs a little raised by a cushion. If dizziness is associated with sweating and you are away from a meal, you may be hypoglycemic. Lie down and get yourself a sweet drink (herbal tea or fruit juice), grab a snack.

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