The most common clinical cause of vulvar distension after pregnancy is that the enlarged uterus presses on the inferior vena cava, causing poor return of the lower extremities and varicose veins in the vulva, thus manifesting vulvar distension and pain. It is advisable to rest in bed and stand less to avoid this situation or to relieve vulvar swelling and pain clinically. In addition, if vulvar swelling is accompanied by increased vaginal discharge and yellowish color, it is often due to inflammation of the vagina. It is often caused by inflammation of the vagina. It is advisable to take the discharge for routine laboratory tests to understand the pathogenic bacteria that are infected and then give targeted medication for treatment to relieve the vulvar swelling and pain. During pregnancy, estrogen increases thousands of times, which leads to increased vaginal discharge. It is recommended to keep the vulva clean and change underwear regularly.