Swollen feet at 37 weeks of pregnancy may firstly be caused by an enlarged uterus, which needs no treatment. Secondly, it may also be caused by hypertensive disorders of pregnancy, malnutrition and so on, which need to be treated with medication according to the cause. 1. Enlargement of the uterus: after 37 weeks of pregnancy, the uterus will compress the inferior vena cava, affecting the inferior vena cava reflux, at this time, pregnant women are prone to swollen feet. This is a normal physiological phenomenon, do not need to take measures to treat, pregnant women at this time to rest, rest can be the lower limbs elevated. In addition, pregnant women can take the left side lying position when resting, which is conducive to the symptoms caused by venous compression. 2. Hypertensive disorders of pregnancy: If hypertensive disorders of pregnancy lead to swelling of the feet of a pregnant woman in her 37th week of pregnancy, she can use antihypertensive drugs such as labetalol and nifedipine under the guidance of her doctor. For pregnant women with pre-eclampsia, if the treatment with medication is ineffective, it is necessary to take vaginal trial of labor, cesarean section and other ways to terminate the pregnancy. 3. Malnutrition: If a pregnant woman is 37 weeks pregnant and suffers from malnutrition, her feet may swell. At this time, the pregnant woman can increase her nutrition under the guidance of her doctor, and if she suffers from severe malnutrition, she can use parenteral nutritional agents, such as fat milk and amino acid injections, etc., after evaluation by her doctor. Swollen feet in 37 weeks of pregnancy may also be caused by heart failure, hypoproteinemia and so on. Pregnant women are advised that they need to seek prompt medical attention, and if it is due to an enlarged uterus, no treatment is required. If it is caused by disease, then you need to follow the doctor’s instructions for treatment.