A protective sheath for use within a vaginal canal of a female user, the protective sheath including a flexible tubular body having a body medial portion disposed between a body closed end portion and a body open end portion; and an annular flange extending radially outward from the body open end portion, the annular flange terminating in an annular flange edge having an elliptical annular flange edge perimeter, whereby the elliptical annular flange edge perimeter configures to overlay a portion of a vulva of the female user.