"...'Spider veins near the surface are typically offshoots of large 'feeder' vessel that needs to be treated as well,' he adds. If your mother or grandmother have them, there's a good chance you will too. 'Varicose and spider veins are 60 to 80 percent genetically predisposed.' says Navarro. 'And pregnancy tends to exacerbate the condition due to an increase in blood flow.' Getting older doesn't help either. 'After the age of 50, half of women start noticing spider veins.' The good news is that body doesn't need these superficial vessels and they can be effectively eliminated with minimal pain...."