Re: vein obsession they are so blue
Well, for a start veins are meant to be blue so that's normal. I wouldn't expect an IV to have damaged a vein...unless you have IVs alot, as in drugs injected into your veins on a daily basis as per junkie level?
Perhaps you found no information online about this because it's not considered to be a problem. Also, the veins on your right arm may be bigger if you favour your right side, if you're right-handed for example, then everything on that side will be bigger, stronger and more pronounced.
That's all i've got sorry, except to say I'm glad you're only asking about this because you're curious rather than worried, because it would be a silly thing to be worried about really wouldn't it.
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Without fear there cannot be courage - Christopher Paolini