Most of the time high blood pressure can't be cured but it can almost always be controlled. Once you are diagnosed with high blood pressure you'll probably have to take steps to keep your blood pressure low for the rest of your life. This could mean exercising more, eating a healthier diet or taking certain medications and in some cases it might require all three. It's important to control your blood pressure in order to prevent serious damage to your organs, which can be life-threatening. If your doctor diagnoses you with secondary high blood pressure you may actually be able to cure it by treating the underlying cause. This often requires a surgical procedure such as percutaneous coronary intervention (PCI) or a bypass.