Before menstruation vulva itches menstruation comes after what reason is not itchy

Before menstruation vulva itch after menstruation does not itch may be due to vulvitis, fungal vaginitis, trichomonas vaginitis or bacterial vagina caused. Suggest to go to the hospital in time to do gynecological examination, this time to keep the perineum clean. If it is caused by bacterial vaginitis, need to follow the doctor's advice with antibiotics to treat.