The back of the hand tendons in the vast majority of cases is not pathological, just a normal physiological phenomenon. The back of the hand veins obvious mainly in the following two kinds of people: First, the thin women subcutaneous fat, skin color white, thin skin layer will make the back of the hands of the blood vessels show obvious. Two, engaged in physical labor workers or often exercise the body, because the back of the hand veins expansion, so show more obvious, but these two cases are not pathological, just normal physiological changes. If you suspect that the veins on the back of your hands are varicose veins, you don’t have to, as most of the veins on the back of your hands do not suffer from varicose veins.