Itching at the vaginal opening is often caused by the following reasons: 1. Vulvar malnutrition, which not only itches the vulva, but also causes loss of skin elasticity and skin color, and itching can affect daily life and rest. 2. caused by vulvar dermatitis. 3. caused by certain pathogenic vaginal infections, such as vulvovaginal pseudomonal yeast disease, trichomonas vaginitis, mycoplasma vaginitis, chlamydia Vaginitis, as well as bacterial vaginosis and miscellaneous bacterial infections, may cause itching of the vaginal opening. Therefore, it is advisable to go to the hospital for the appropriate examination to understand the cause of the disease before giving medication, and it is recommended to do routine laboratory tests of the white belt to exclude the possibility of pathogenic bacterial infection in the vagina. In daily life, you should pay attention to the hygiene of your sexual life and menstrual period, and change the sanitary napkin regularly when you have your period to avoid the possibility of local inflammation caused by pathogenic infection in the vaginal opening or vulva.