What Causes Discoloration Of Vagina?

Hi, may I answer your health queries right now ? Please type your query here...I just had a pap smear along with hpv test for first time, re:hpv. After one day i cked myself and saw that a peice of my inner skin at vaginal opening is white. Is this normal? I am 52 in menopause. Dose that cause the skin peice to turn to white?What caused the peice to turn white?