The valves inside your veins should keep blood going in the right course, but some of the extra blood can pool in the leg veins that are lower while you're pregnant. Another factor is progesterone, which relaxes blood vessels. Your own body generates more of the endocrine while you're pregnant. All these will be the motives that varicose veins tend to be more than likely to show up in pregnancy. Check out more solution on the treatment of varicose veins : http://www.varicoseveinstalk.com