The vast majority of women will gradually develop swollen legs and feet after 6 months of pregnancy, mainly because as the number of days of pregnancy increases, the enlarged uterus compresses the inferior vena cava, which obstructs the blood circulation back to the lower limbs, thus causing lower limb edema. It is recommended to take proper rest, soak your feet in hot water at night to relieve fatigue, and elevate your lower limbs with a pillow to improve circulation and reduce swelling. It is also recommended to rule out the possibility of proteinuria when lower limb swelling occurs and to monitor blood pressure to rule out the possibility of gestational hypertension. Once leg swelling occurs, a detailed examination should be done and if it is simple edema with no other symptoms, improvement can be given by the above methods.