Why do you get varicose veins during pregnancy?

During pregnancy, a woman's blood volume goes up substantially. There's more fluid in the system. As the baby gets bigger, the uterus pushes on the veins in the pelvis, which adds into the pressure. That also adds to the wear and tear. Into the second trimester, into the third trimester, the veins are really showing the signs. After delivery, the patient's blood volume returns to normal, the pressure's relieved, and the veins can lighten up a little bit, but then five, ten, fifteen, twenty years later, low and behold, the veins are back. For many folks, it was the pregnancy that was the first sign of that.

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