a LOT of people actually have this, sometimes the veins are just closer to the skin that in other people, other than covering it up (like with make-up or a tan) unfortunantly you cant do anything about it if their veins, but realise that lots of other people have the same problem so your definantly not alone
nooooo they're defintely not stretch marks they are blue as can be veins that are more noticeable sometimes and not all of the time
I'm not sure then. Maybe you should see a doctor.
They may be stretch marks, as opposed to veins.