After pregnancy, many women experience swollen feet, which can be due to pathological or physiological reasons. However, swollen feet can often lead to varicose veins. Swollen feet generally indicate local retention of water and sodium or obstructed venous return. When a large amount of blood accumulates in the veins, it can easily cause varicose veins. However, during pregnancy, the duration of foot swelling is not very long, generally lasting about one to two months. After childbirth, the swelling of the feet quickly alleviates. Therefore, even though swollen feet may cause varicose veins, the severity is usually mild and it will alleviate after childbirth.