Before revision: using vinyl polysiloxane castings taken from the vaginas of 39 Caucasian women, found the following ranges of dimensions: lengths (measured using rods): ; widths: ; introital diameters: A second study by the same group showed significant variations in size and shape between the vaginas of women of different ethnic groups.
After revision: using vinyl polysiloxane castings taken from the vaginas of 39 Caucasian women, found the following ranges of dimensions: lengths (measured using rods): cvt|2.5 - 3.5 in widths: ; introital diameters: A second study by the same group showed significant variations in size and shape between the vaginas of women of different ethnic groups.