The machine that measures your blood pressure is called a 'sphygmomanometer'. A cuff is placed around your upper arm and is pumped up (this may feel slightly tight around your arm). Blood pressure is measured in units called called millimeters of mercury' (mmHg).

Blood pressure readings give two numbers:

The higher number is called the "systolic" pressure - this relates to the pressure in the arteries when the heart beats (contracts) pumping the blood around the body.

The lower number is called the "diastolic pressure" - this relates to the lowest pressure in the arteries when the heart is relaxing between heartbeats.

In adults, the target blood pressure is below 140 / 85 (140mmHg systolic and 85mmHg diastolic). If you have Diabetes then the target is less than 130/80 (130mmHg systolic and 80mmHg diastolic)

Your blood pressure will move up and down each time it is measured, so it may take a few weeks or months to decide if your blood pressure is actually high enough to need treatment. If your blood pressure readings are high, get your blood pressure measured regularly and your treatment adjusted After that you should have it checked twice a year.

If you have high blood pressure you will probably need more than one kind of medicine, and many people need three medicines to keep their blood pressure down to a safe level. You should take the pills every day and probably for the rest of your life. If one kind of medicine does not suit you then there are several others to try. Tell your doctor or nurse if you think that your pills are giving you problems so that you can see if a change would help.