Vaginal itching after menstruation can be caused by the following reasons: First, it can be caused by vaginal itching during menstruation when women do not clean up their menstrual blood in time and do not pay attention to hygiene, resulting in bacterial infection and vaginitis. When women have heavy vaginitis before menstruation, due to the heavy vaginal inflammation, when they are about to finish menstruation, the blood volume in the vagina decreases, causing the reproduction of bacteria in the vagina, which will cause the symptoms of vaginal inflammation to increase and vulvar itching will occur. Itchy vagina may be related to the lowered resistance of women during menstruation. If women have itchy vagina when they are about to clean their period, they can first wash their vulva with Jelqing or gynecological cleansing and go to the hospital for gynecological examination after their period is completely clean, so as to clarify the cause and carry out the corresponding symptomatic treatment.