Women with severe itching in the vulva at night, where itching is paroxysmal and significantly aggravated at night, are mostly caused by vulvovaginitis, due to long-term stimulation of menstrual blood or long-term accumulation of vaginal secretions, resulting in varying degrees of itching in the vulva. Women with malnutrition experience severe itching at night, as well as light colored vulvar skin, little vaginal discharge, and itching sensation in women’s vagina. It is recommended to go to the hospital for routine examination of the white belt. If the infection is due to vulvar inflammation can be treated with anti-inflammatory drugs, such as oral metronidazole granules. Pay attention to vulvar hygiene in daily life, remove the discharge in time, change sanitary napkins during menstruation and avoid scratching when itching to prevent bleeding symptoms.