Why do veins look green?

Answer 1

Human blood is ALWAYS red. Really. Anyone who says it's blue or any other colour is mistaken.

This is plainly obvious if you ever donate blood. Phlebotomists always take blood from veins, they are required to do it without exposing it to air, and it always looks red. Likewise, any surgeon (or sausage company) will tell you that all veins and arteries are pretty much clear.

Now, I know what some of you are thinking: 'Wait a minute - I can see some of my veins and they are clearly blue!'. It's okay. There are scientists who have wondered about that too:

In a recent piece of research, it was discovered that veinous blood looks blue only because it's surrounded by much redder blood. They could even reproduce the effect by surrounding red veinous blood with a pool of red oxygenated blood... the veinous blood looked blue when submerged!

And so it goes with other colours as well. Many people have pigments in their skin that can alter the apparent colour of veins and arteries underneath. But this hardly means that they actually ARE different colours, of course!

There are creatures in the world that do not have red blood - some have greenish-blue blood because they use copper atoms to attract oxygen instead of iron. It doesn't work anywhere near as well, unfortunately for octopi and mollusks out there.

Answer 2

Why Do Veins Appear Green

Answer 3

Mine look blueish:).
It's the pigment in your blood.
The condition of your blood.
How much liquid you have been drinking, water ,juices all contribute to the color of your blood.
Your race (darker skin doesn't show the veins as blueish or In your case green:).
This is from;http://sln.fi.edu/biosci/vessels/veins.html
this sit ehas some good information.

Because it lacks oxygen, the waste-rich blood that flows through the veins has a deep red color, almost like maroon. Because the walls of the veins are rather thin, the waste-rich blood is visible through the skin on some parts of the body. Look at your wrist, or hands, or ankles. You can probably see your veins carrying your blood back to your heart. Your skin refracts light, though, so that deep red color actually appears a little blue from outside the skin.

Answer 4

I may be completely wrong here... but the veins that carry blood BACK to the heart are green because the blood in them lack oxygen. It is only after is has gone through the lungs and therefore replenished of oxygen that the veins that carry it are not greyish green. More or less the same reason why we go blue when we are being strangled !! Now let's have a doctor or nurse give us the REAL reason.

Answer 5

This Site Might Help You.

RE:
Why do veins look green?

Answer 6

It'll probably be because you have a yellowish skin tone(Naturally, I mean, I'm not talking about jaundice!) and veins are blue.

Blue and yellow make green, ergo your veins appear green. Mine look blue.

Answer 7

After 10 years of struggling with all sorts of creams and pills to treat this embarrassing problem I was able to get rid of my varicose veins by using natural healing methods and alternative herbal home remedies.

Read Diane Thompson's "Varicose Veins Secrets" (also available in electronic format at: http://www.varicoseveinscure.org ). By following this guide book I was able to eradicate my varicose veins pretty fast. God bless!

Answer 8

The blood in arteries looks bright red because it is oxygenated. As the blood goes through body, it drops off the oxygen and picks up carbon dioxide and other waist materials. This changes the color of blood from bright red to dark red. That is why it looks like veins are greenish blue.

Answer 9

Because in veins the oxygen leaves the blood goign to other places in your body, which leaves the carbon dioxide. And the blood turns dark blue which looks green through ur skin.

Answer 10

Yes good question, I've read all about you reptiles disguised as humans waiting to take over the world, I think your disguise may need touching up a bit?
Go and see your chief croc asap!!