High blood pressure (hypertension) can increase your risk of developing serious problems, such as heart attacks and strokes, if it's not treated. Low blood pressure (hypotension) is not usually a problem, although it can cause dizziness and fainting in some people. A blood pressure test checks if your blood pressure is healthy, or if it's high or low.īlood pressure is the term used to describe the strength with which your blood pushes on the sides of your arteries as it's pumped around your body.
