Blushing is not necessarily due to high blood pressure, but needs to be explored from various aspects. In some people, the capillaries in the face are more dilated, which can cause blushing; in some people, it is caused by sympathetic excitement, most often when they are shy. The relationship between blushing and blood pressure is not direct, but it is true that some people with hypertension will experience blushing. The reason for this blush is related to high blood pressure itself, and also has a lot to do with the antihypertensive medication for hypertensive patients. Because there is a class of antihypertensive drugs called vasodilators, which can cause the expansion of small arteries and capillaries throughout the body, it is easier to show the blushing changes brought about by capillary expansion on the face. So there are a lot of hypertensive patients blushing, but blushing does not mean that the blood pressure is not well controlled, nor does it necessarily mean that there is hypertension.