There are many reasons for vulvar itching, among which fungal, bacterial vaginitis, pubic lice disease, viral infection, drug allergy, local skin uncleanliness can be induced. 1. Fungal and bacterial vaginitis: usually it can induce vulvar and vaginal itching, vulvar flushing, accompanied by soybean dregs leukorrhea, odor, scratching can cause vulvar dermatitis and eczema changes, which requires symptomatic antibacterial treatment. 2. Pubic lice disease: Pubic lice disease is mainly due to pubic lice parasitized on the pubic hair induced, this time need to remove pubic hair, and apply insecticidal drugs. 3. Viral infections: common viral infections are caused by HPV and herpes viruses, such as condyloma acuminatum and genital herpes, which can induce itching symptoms, and anti-viral treatment is needed. 4. Local skin impurity: women in the use of improper sanitary napkins, can lead to vulvar skin impregnated by menstrual blood, vaginal secretions, urine, feces and sweat, gradually leading to chronic inflammation of the local skin, thus causing vulvar itching. Therefore, the causes of vulvar itching are numerous and need to be discussed in different situations for symptomatic treatment. If the symptoms are serious, consult a doctor in time and follow the doctor’s instructions for medication.