Spider vein...assistance!?

i'm almost 20 years old and i own found a couple of spider veins on my thighs...i enjoy not had any children and i'm not over immensity. what causes them? how can i return with rid of them or stop them from coming? they arent that noticable yet but i hang on to finding more, i've counted 4Spider vein...assistance!?
I hate to speak it, but a major lead to of spider veins have to do with inheritance...Besides that and pregnancy, you can start developing them if you sit or stand without moving for a prolonged time. They are also cause by some injuries, like bruises, that don't alleviate properly. As far as I know there is no instrument to get rid of them besides laser treatment by a doctor.
they are cause when blood stops flowing through them like when you cross your legs A LOT. i hold that tendency of crossing my legs and presently i have spider veins- YUCK! i basically caught myself doing it now lol...
Its in the order of 90% genetics and 10% outside factor like poor circulation and unsuitable care of your body.
It may run within your families genes . They can also form by standing too long perchance at a job? Try to elevate your legs a few times a week to relieve the pressure on your legs and wear support hose .
try a automatic supplement like grape pip extract