Common causes of vulvar itching are: first, local lesions of vulva, herpes, eczema, condyloma acuminata, vulvar squamous epithelial cell hyperplasia and pubic lice, scabies, etc. Second, vaginal diseases, candida vaginitis, trichomonas vaginitis, senile vaginitis, gonorrhea vaginitis, mycoplasma chlamydia infection, etc. Poor hygiene habits, not in the habit of cleaning the vulva every day or contact with irritating objects, wearing poorly ventilated chemical fiber underwear or underwear that is not clean. Fourth, systemic diseases, such as diabetes, etc. V. Vulvar dystrophy, vulvar leukoplakia, vulvar cancer and other malignant diseases, vulvar nerve endings inflammation, etc. The occurrence of vulvar itching should be promptly seen in the hospital, do not blindly use drugs, so as not to cover up the lesion and affect the diagnosis.