Yes they definitely do improve and some even go away completely, but and there is a big “but” here…
In healthy women, with no family history, varicose veins can develop during or even after their first pregnancy. After 3 to 6 months, most will get better, improve and disappear. Of this group, 25% will show no improvement and may continue to have varicose veins that need treatment.
This is where the “but” actually kicks in. If you happen to show improvement and disappearance of your varicose veins after your first pregnancy, there is always a risk of it developing in subsequent pregnancies. This could be the 2nd, 3rd or more.
Weight also plays a major factor and the heavier you are the higher chance for your veins to break down. Further more, having a strong family history may mean you are already predisposed to developing them and pregnancy is just the trigger.