I am not pregnant, have had a hysterectomy, am years old......why do i have two perfectly symmetrical purple lines in the creases of my vagina, on both sides, that run from my pubic bone, down to the opening of my vagina, and at the opening. they just appeared recently. They don t hurt, do not bulge, do not look like veins. It looks like someone took a purple marker and drew these lines. What is it and should i be concerned?