Edema of the vulva in late pregnancy may be caused by fetal weight gain, inflammation and infection, gestational hypertension, etc. Improve the symptoms through bed rest, medication and dietary modification. 1. Fetal weight gain: with the growth of the fetus in late pregnancy, the uterus compresses the inferior vena cava, and the obstruction of reflux triggers the swelling of the vulva, usually do not stand for a long time, try to lie down and rest in bed, and elevate the lower limbs when lying down, and change the position of the vulva will reduce edema, and usually wear loose cotton underpants, do not wear tight underpants. 2. Inflammatory infections: patients with vaginitis in late pregnancy, vaginitis secretions stimulate the vulva, infection of the local skin will cause edema at the vulva, observe the nature of the secretions, dregs of change accompanied by edema of the vulva may be mycosis vaginalis, wash the vulva with baking soda and water, topical application of miconazole nitrate ointment. Fishy odor and foamy secretions may be trichomonas vaginitis, with metronidazole effervescent tablets into the vagina, topical erythromycin ointment to improve the symptoms. 3. Gestational hypertension: late pregnancy accompanied by gestational hypertension syndrome, the patient may show generalized swelling, the vulva will also occur edema, usually pay attention to dietary regulation try to choose low-fat, low-sodium food, eat some winter melon, watermelon, follow the doctor’s orders with magnesium sulfate to lower blood pressure. Edema in the pubic area in late pregnancy has more causes, and serious cases are recommended to seek timely medical treatment to reduce the harm to the body. In addition, the use of all the above drugs need to be under the guidance of a doctor.