Vulvar desquamation, dryness and itching may be caused by neurodermatitis, vulvar eczema and seborrheic dermatitis. 1. Neurodermatitis: Neurodermatitis is caused by neuropsychiatric, physical and disease factors. The skin of the affected area is dry, thickened, with a few scales, often accompanied by itchy conditions, and it is most common in the neck, back, and pubic area. 2. Vulvar eczema: the cause may be systemic diseases, allergic allergies and mental factors, patients usually manifested as vulvar itching, roughness, mossy lesions and so on. 3. Seborrheic dermatitis: its cause may be genetic, age and skin diseases and other factors, the patient’s lesions are mostly found on the head and face, trunk and vulva, etc., there will be itching, scaling and other symptoms. The cause of vulvar desquamation dry and itchy more reasons, it is recommended that patients seek medical examination to clarify the cause of the disease.