Come to aunt, also called menstruation and physiological period, come to menstruation below the itch generally refers to the vulvar itch, may be related to physiological period sanitary napkin stimulation, vulvar inflammation, vaginitis, etc., can be through the cleaning of the vulva, the topical application of medication or oral medication treatment. 1. Menstrual period sanitary napkin stimulation causes: menstruation without timely replacement of sanitary napkins, bleeding skin irritation, vaginal moisture, skin allergies to sanitary napkins can cause vulvar itching. It is necessary to pay attention to timely replacement of sanitary napkins, wash the vulva, keep the vulva clean and hygienic. 2. Vulvar inflammation: not paying attention to the hygiene of the vulva during menstruation may cause bacterial infection of the vulva, causing the problem of vulvar itching during menstruation. You can use water, topical saline, cleansing lotion to wash the perineum, or use tretinoin cream, hydrocortisone, erythromycin and other treatments. 3. Vaginal inflammation: menstrual bleeding body resistance is weak, causing bacterial vaginosis, oral metronidazole, tinidazole and other drugs. Itchy vulva during menstruation should pay attention to not scratching with hands to avoid causing infection. Adopt good habits, change underwear diligently. Continued discomfort, need to go to the hospital, follow the doctor’s instructions for treatment.