When edema occurs in mid-pregnancy, if it is simple edema, it can be relieved by adjusting diet and posture; if it is edema caused by disease, it should be treated for the cause. For simple edema, it is recommended to have a regular routine, keep your mind relaxed, exercise reasonably, have a light diet, and quit smoking and drinking. If the swelling of the lower limbs is more serious, you can elevate the lower limbs when sitting, which is conducive to venous return. If edema is serious, it is recommended that pregnant women go to the hospital to do blood, urine, liver function, kidney function, ultrasound, etc., to see if the blood pressure is normal, if the edema caused by hypoproteinemia, need to transfuse albumin; if it is edema caused by gestational hypertension, the need for antispasmodic and antihypertensive treatment, the edema is likely to be reduced. After edema in mid-pregnancy, it is recommended to go to the hospital in time for examination, and actively cooperate with the doctor to receive standardized treatment after the cause of the disease is clarified.