Vaginal itching can be caused by something as simple as your period products—but in other cases, it can actually be a symptom of a more serious issue. This guide will help you figure out exactly what’s making you feel like you have ants in your pants—and what your treatment options are.ELATED: Anytime your hormones levels change or fluctuate (like during your period, pregnancy, menopause, or while you're taking birth control), you may experience vaginal itching. Dryness is another indicator that hormones could be to to blame for your pain.