It is a normal reaction for pregnant women to have swollen feet in the middle and late stages of pregnancy. After pregnancy, as the uterus enlarges, the uterus rotates to the right and compresses the inferior vena cava, the blood flow to the lower extremities of pregnant women will be obstructed, and then swollen feet and swollen lower extremities will occur. After resting and elevating the lower limbs, the swollen feet and lower limbs will be significantly reduced or disappear, which is a normal reaction. If the lower limbs are elevated and the edema is not reduced after rest, and it will be aggravated, it is necessary to monitor the blood pressure of pregnant women, check the urine routine of pregnant women, check the urine protein, to exclude hypertension during pregnancy and to exclude the pregnancy combined with nephropathy. Therefore, swollen feet during pregnancy is a normal reaction, which is relieved after rest and does not require any other treatment. If it does not ease after rest and gradually worsens, you must go to the hospital for examination.