Swollen feet during pregnancy may be caused by physiological factors, such as the influence of hormone levels in the body or the enlargement of the uterus to compress blood vessels, resulting in obstruction of venous return, and may also be caused by pathological factors such as gestational hypertension and iron deficiency anemia, which require timely examination and symptomatic treatment. I. Physiological factors 1, hormonal influence: due to the increased secretion of estrogen in the body during pregnancy, may lead to water and sodium retention in pregnant women, and then edema, it is recommended that pregnant women drink less water and eat mainly light food; 2, uterine compression: due to the growing fetus, the uterus can compress the pelvic veins, resulting in obstruction of venous reflux in the lower extremities, which causes edema in the lower extremities and feet, when sleeping, you can use the left The symptoms can be reduced by lying on the left side, avoiding prolonged sitting and standing, and elevating the lower limbs appropriately during rest. Second, the pathological factors 1, gestational hypertension: when suffering from gestational hypertension, small arteries in the body of pregnant women spasm, increased blood pressure, resulting in a relative decrease in albumin, resulting in hypoproteinemia, causing an increase in intercellular tissue fluid, resulting in edema, and accordingly will also cause swelling of the feet of pregnant women. Can follow medical advice drip magnesium sulfate for antispasmodic treatment, the symptoms are serious need to stop pregnancy by Caesarean section; 2, iron deficiency anemia: due to the growth and development of the fetus requires increased nutrients, if the pregnant woman’s poor nutritional status, it is easy to suffer from iron deficiency anemia, serious patients may be swollen feet, swollen face. At this time, it is recommended that pregnant women consume more food or drugs with high iron content, such as seaweed, spinach, and follow medical advice to supplement iron; 3, other pathological factors: a few pregnant women with heart disease, kidney disease, liver disease, etc. can cause swollen feet of pregnant women, at this time should promptly consult a doctor for relevant examinations, such as electrocardiogram, liver and kidney function, etc., to identify the cause of the disease after symptomatic treatment.