Your heart pumps your blood through your body using tubes called arteries and veins. When the blood moves through your arteries and veins, it makes pressure inside of the tubes. This is called blood pressure. Checking your blood pressure tells your doctor how hard your heart is working to pump your blood.
Blood pressure that is too high (hypertension) means your heart is working too hard to pump your blood. This can harm your body, including your kidneys. High blood pressure can cause kidney disease and kidney failure. Kidney disease can also cause high blood pressure.