I have always had a vein that sort of bulged out on the top part of my shaft. It seems that recently it has become more pronounced and noticeable, especially when it is erect. Should I be worried at all or is it just something common that happens to everyone....thanks in advance for you help.
Hey bud, that vein is the lifeblood of your penis. Its what carries blood that makes your erections what they are. Some of us have veins that are very visible and pronounced, others don't. Nothing to worry about at all....be happy its there!
The reason a man can keep an erection is because the arterial blood flow to his penis compresses the veins that carry blood away, so more blood goes in than goes out. It's likely not a bad thing for that vein to bulge when you have an erection, in fact it's probably indicative of the fact that you have a good ability to retain an erection.
Veins and arteries are different in that arteries are surrounded by smooth muscles so they don't bulge under pressure. Veins don't have these muscles, since they're not usually subjected to these high pressures. That's why if you've ever noticed the veins in the back of your hand, when you dangle your arm down, probably bulge more than if you hold your hand above your heart. The reason the vein in your penis bulges is because it's being subjected to pressure, namely, the pressure that your erection is exerting on it. If no pressure was exerted on that vein, the blood would flow out of your penis through it, and you would lose your erection.
its still pretty visible when i dont have an erection but from the way you guys were talkign i take it that it isnt a problem either....thanks for urehelp....just wanted to make sure i had nothing to worry about since it has gotten more and more noticable as of late.