Many moms-to-be experience varicose veins--those yucky swollen veins that bulge just under the skin-- during pregnancy. But why?
Varicose veins are linked to increased pressure in the veins. Valves inside the veins that normally prevent the backward flow of blood become damaged. This can cause the blood to go backward or pool...and swell your veins.
If you experience weight gain during pregnancy and increased progesterone levels, the walls of your veins can become weak. You're also more likely to get varicose veins if you have a family history of them. Being overweight, carrying twins or just having additional pregnancies can make your prone to varicose veins.