The causes of dry and painful vulva are multifaceted and not single. First, vaginitis. Vulvovaginitis, like Candida-infected vaginitis, bacterial vaginitis, and non-specific vulvovaginitis, can cause vulvovaginal dryness and pain; second, medical factors. People with vulvar dryness and pain often have a history of repeated use of topical medications. Because the protective barrier function of the vulvar skin stratum corneum is not as good as that of other parts of the skin, vulvar irritation due to topical medications is relatively common, and if it is used frequently, vulvar dryness can occur; Third. It is the genetic factor. Vulvar dryness and pain occurs in whites, blacks and Asians, with the human race also has a certain relationship; Fourth, dietary factors. The usual diet may be relatively spicy to eat more, the internal fire is heavy to eat more, in addition to vitamin deficiency has a lot to do with, especially vitamin B deficiency is prone to vulvar dryness and pain; Fifth, the impact of estrogen. If the body’s estrogen level is low, there can be vulvar dryness and pain; sixth, human papillomavirus infection can also appear after vulvar dryness and pain; seventh, pelvic floor muscle tone. If there are patients with vestibulitis, there are instability of the levator ani muscle, poor recovery after muscle contraction and elevated resting base tension, can indirectly appear vulvar dryness and pain; Eighth, neurological factors. Sometimes too tired, too much pressure, can also appear vulvar dry pain. So there are many factors of vulvar dryness and pain, generally through gynecology, at the same time, women’s sex hormone six index examination to comprehensively analyze the diet to eat more fresh vegetables and fruits, avoiding partiality and picky eating, the diet should be comprehensive and diversified, and to avoid some stimulation of the internal fire and the intake of heavy food.