Some pregnant women have varicose veins, which may disappear after giving birth. Pregnant women are prone to develop varicose veins during pregnancy, mainly because of the gradual enlargement of the uterus during pregnancy which causes pressure on the pelvic blood vessels, especially when it leads to the compression of the venous system, it causes varicose veins in the lower extremities. After the delivery, the uterus gradually returns to normal, the pressure on the pelvis gradually reduces, and the symptoms disappear, and the varicose veins may go away. However, there are some pregnant women who have varicose veins that are not caused by pregnancy or whose varicose veins have caused irreversible damage to the walls of the venous blood vessels and will not return to normal after delivery. If the varicose veins still do not recover after delivery, you should go to the hospital in time and cooperate with the doctor to take treatment.