Your veins may be more visible if you don't have much fat on your hands. Age. Your skin thins and loses suppleness as you age, making your veins more noticeable. In addition, as you become older, the valves in your veins deteriorate. Blood may pool in your veins for a longer amount of time as a result of this. Aging hands also appear white because blood is circulating through thinned out skin. Young people usually have smoother skin with fewer veins than old people. The more sun exposure you get, the more likely it is to develop dark spots and wrinkles. But there are other factors that can increase the visibility of your veins too! Being tall or heavy can also make your veins seem larger. So can being sick or injured. If you're having trouble seeing your veins, try wearing gloves or using duct tape to mask their appearance. If you have thick, shiny hair, it can hide small veins on your hand. However, if you wear tight clothes, the veins will still show up even though they might be less visible. Hand veins are very common and many people have them. They're often more visible in warm weather when your blood flows more freely. But they shouldn't cause any concern unless they are extremely painful or swollen. If you have questions about what kind of treatment your hand veins need, ask your doctor.