The blood vessels on the forehead bulge up, this situation is mostly a physiological phenomenon, common in the following three types of people: 1, the elderly. 2, people who often engage in physical labor or physical exercise. 3, people who are physically thin, especially in the process of weight loss body rapidly thinning people. Because of the rapid reduction of subcutaneous fat and thinning of the skin in these three categories of people, it will cause a mild expansion of blood vessels, and because the thinning of the skin makes it more obvious, so the state of the blood vessels on the forehead bulge up. However, this condition itself is a physiological change and does not need to be worried about, let alone require further examination and treatment. There are many people who are concerned about whether this condition is a result of some varicose vein disease, but in fact, because the head is closer to the heart, there is no excessive venous pressure during reflux, and it is not a result of varicose vein disease.