There are physiological factors and pathological factors that make bruises obvious, as follows: 1, bruises obvious mainly subcutaneous venous ducts, some people look more obvious, mostly due to individual differences. Some people have thicker subcutaneous fat, so you can’t see these subcutaneous vein tubes. Some people have less subcutaneous fat, so they show the phenomenon of exposed veins; 2, the veins caused by pathologic factors are obvious, especially the formation of elevated venous pressure or systemic diseases, may also appear veins obvious symptoms, such as liver disease leading to jugular vein varicose, in this case, it is a kind of pathologic manifestation, such as double lower limbs produced by the great saphenous varicose vein, also due to the formation of stressful factors Pathological changes.