The causes of vulvar itching include vulvovaginitis, ringworm, bacterial vaginitis, mycoplasma, chlamydia, trichomonas vaginitis, mycosis fungoides, pubic lice and so on. It is recommended to go to the hospital gynecological internal examination, take the vaginal secretion test routine leukorrhea, clear specific pathogenic bacteria, targeted medication. Pubic lice, ringworm, gynecological examination can be observed with the naked eye, you can remove the pubic hair, insecticide treatment. Dermatophytosis can be applied antifungal drugs, mycoplasma and chlamydia infections need oral anti-mycoplasma and chlamydia anti-inflammatory drugs. Bacterial and trichomonas vaginitis can be treated with mirex orally and tinidazole suppositories vaginally, and mycosis fungoides can be treated with fluconazole orally and clotrimazole vaginal tablets externally.