Prominent veins on the backs of the hands are a cosmetic concern, particularly for women as they get older. There's an expression that you may have heard: "You can tell a woman's age by the appearance of her hands". Well, that doesn't have to be the case - these veins can be either eliminated or masked in several different ways. If it's just the veins you're trying to get rid of (and not trying to also mask the underlying tendons and build volume on the backs of the hands), options include sclerotherapy (injection of the veins), microphlebectomies (taking out the veins through tiny incisions) and endovenous laser ablation (EVLT). On the other hand (no pun intended!), if you'd like to build volume on the backs of the hands to mask the veins and tendons, you should consider dermal fillers just as Radiesse, Juvederm Ultra Plus or Voluma. Keep in mind that if you treat the veins directly, they will no longer be available for IV access should you get sick one day...so hopefully you have good veins in the forearms or antecubital regions that they can access. The veins will still be available should you choose fillers. The downside to fillers is that they are not permanent and depending on the product you choose will last 1-2 years. Hope that helps!