Swollen legs and feet at 37 weeks of pregnancy may be caused by the pressure of the enlarged uterus or by high blood pressure during pregnancy. 1. Increased uterine compression. 37 weeks of pregnancy is already in the late stages of pregnancy, due to the continuous development of the fetus uterus increases significantly, the increased uterine compression of the veins lead to the obstruction of reflux, which will appear in the phenomenon of leg and foot swelling. Pay attention to avoid standing for a long time, can be appropriate to elevate the lower limbs to increase reflux to reduce edema, avoid eating too salty food, and diligently use hot water to soak your feet, which can alleviate the phenomenon of edema. 2. High blood pressure during pregnancy. 37 weeks pregnant legs and feet swollen also need to be vigilant whether gestational hypertension caused by gestational hypertension can easily lead to impaired renal function, increased urinary protein, which will cause swelling feet or legs. You can measure your blood pressure in time, and if your blood pressure is abnormal, it is recommended that you follow the doctor’s instructions to take labetalol, nifedipine extended-release tablets and other medications to control your blood pressure, and appropriately increase the number of obstetrics tests.