Hello, I have this large "Vein" on my penis that has been there since I can remember. It does not hurt at all but I am worried that it might be something serious. It sits right on top of the shaft and is very visible. Please let me know any information you may have! 
If anyone has information on this please let me know!
I am not an expert, but from what I know this is completely normal
Okay thank you. I have just never seen it before on other guys penises and thought it may be unusual.
I have a large vein on top of my penis too. I have seen them on other men in pictures as well. I feel it is normal for some of us to have it. Mine can become a bit sore at times after a long maturation session. During and after sexual relations with another person I have not suffered any pain.
look perfectly normal to me man some veins are bigger than others in some individuals penises
thank you