There are many factors that can lead to vulvar itching and hardening of the skin, such as vulvar inflammation, vulvar malnutrition or localized eczema of the vulva. 1. Vulvar inflammation: If there is bacterial infection in the vulva, it is easy to stimulate and cause vulvar itching, and due to localized scratching, it is also easy to cause localized hardening of the vulvar skin or chapped phenomenon. 2. Vulvar dystrophy: generally known as vulvar mossy lesions, the main manifestations of vulvar skin whitening, itching, thickening. The cause is not particularly clear. 3. Vulvar eczema: if the local stimulation time is longer or used impermeable sanitary products or local care products, it is easy to lead to eczema, and this kind of phenomenon will also occur. Vulvar itchy skin hardness may also have other reasons, need to go to the regular hospital in time to diagnose, diagnosed under the guidance of the doctor symptomatic treatment, can not be indiscriminate use of drugs.