If the leukorrhea test is OK, itching of the vulva may be related to vulvar allergy to intimate clothing or vulvar dystrophy. It is important to look for the cause of the problem. Vulvovaginal itching is usually associated with vaginal inflammation, and if the routine examination of the leukorrhea excludes vaginal inflammation, then it is considered to be caused by allergy of the vulva to intimate clothing or sanitary napkins, and it is necessary to determine the cause of the problem and take timely measures to change the clothes or sanitary pads. Itchy vulva excludes vaginal inflammation and allergy caused by the consideration of the possibility of vulvar leukoplakia and other vulvar dystrophies caused by the disease, it is recommended to go to the hospital as soon as possible to the obstetrics and gynecology department to do a gynecological examination, and biopsy to determine the necessity of taking active measures to treat the problem. It is recommended to change and wash the underwear frequently, wash the underwear in the sun, pay attention to wear cotton underwear to prevent allergies, and use sanitary pads produced by regular manufacturers to prevent discomfort caused by allergies. Usually also need to pay attention to maintain vulvar hygiene, every night warm water bath to prevent infection.