The itching of the vulva after delivery is mostly seen in the following cases: 1. skin contact allergy, mostly seen in contact with sanitary napkins or puerperium towels after the vulva skin redness, itching, and the more you scratch the more itchy, until the skin is broken, itching symptoms can not be relieved. 2. mycotic vaginitis, postpartum vaginal bleeding for a long time easily infected with mold, manifested as vulvar itching, bean curd-like leucorrhea. 3. vulvar eczema, postpartum vulvar environment It is easy to induce eczema due to humid environment, which is clinically manifested as red skin papules, itching, dryness, and may be accompanied by flaking. 4. After delivery, pay attention to vulvar hygiene, eat lightly, wear loose cotton underwear, and go to the regular hospital in time when abnormalities are found.