your veins, because the blood is moving against gravity, have little tags on them...I/ \I...like that...the straight lines are the sides of you vein. when your heart pumps it pushes through your vein, but then, so the blood doesnt rush back down to your feet in between beats, these little valves close...like this...I__I...and then punp and open...I/ \I...ect. that way the blood moves through your body efficiently with no back flow...varicose veins occur when a few of these little arms break or are damaged, and back flow occurs in an area, making the vein look protuded because it stretches out, as a larger section is filled with this blood.often times they look like bumpy protruding veins, and can sometimes be painful.depending on trauma and genetics, they can occur, but if you run and keep in shape, and try not to cross your legs, you may be able to keep them from occurring if they run in your family. If they get really bad, you can wear control socks or stockings to keep the veins from protruding, and it helps to push the blood through your system much more efficiently...this is a bad case...but you can have them mildly or in one or two areas...http://www.dailyexcelsior.com/magazine/0...i hope that helped. Source(s): my mom has them
your veins, because the blood is moving against gravity, have little tags on them...I/ \I...like that...the straight lines are the sides of you vein. when your heart pumps it pushes through your vein, but then, so the blood doesnt rush back down to your feet in between beats, these little valves close...like this...I__I...and then punp and open...I/ \I...ect. that way the blood moves through your body efficiently with no back flow...varicose veins occur when a few of these little arms break or are damaged, and back flow occurs in an area, making the vein look protuded because it stretches out, as a larger section is filled with this blood.often times they look like bumpy protruding veins, and can sometimes be painful.depending on trauma and genetics, they can occur, but if you run and keep in shape, and try not to cross your legs, you may be able to keep them from occurring if they run in your family. If they get really bad, you can wear control socks or stockings to keep the veins from protruding, and it helps to push the blood through your system much more efficiently...this is a bad case...but you can have them mildly or in one or two areas...http://www.dailyexcelsior.com/magazine/0...i hope that helped. Source(s): my mom has them
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