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Why do people get spider veins?

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Video Overview

Why do people get spider veins? People usually get spider veins for the same reason that they get large varicose veins except the veins that cause the spider veins are more visible on the surface whereas the veins that cause varicose veins are below the surface, called saphenous veins. Spider veins usually derive from flat blue-green ventricular veins that are usually identified on the legs. You can see them on the arms and elsewhere but those are not pathological. On the legs they frequently cause pressure that forces the blood back to the skin rather than the blood going into body and up to the heart. The blood flows down the legs then out to the surface. The defective valve does not allow the blood to flow properly and the spider veins then become dilated and visible. That's why people get spider veins.

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