How can you tell the size of a woman's vagina without actually seeing it?

Considering a girl is a virgin how can you relate the circumference of her hole. I do the hand and foot rule and I look at the girth of their hips, but somehow I have a sneaking suspicion that this is wrong. Any gynecologists out at hand?
Answers:

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Ultrasound is devout and accurate adequate.
Not for wideness but for depth you can use a device call hysteroscope to manoeuvre it.

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by her mouth

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a woman's vagina is design to birth a child so it will stretch to accommodate a penis, however not adjectives women's vaginas are as long as others so mind on the thrust not to hit her cervix

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you cant hun and the integral paw and foot entity for a guy alot of times it isnt correct lol. a woman could own far-reaching hips and be chubby and still hold a small vagina or the woman could be skinny and own a massive vagina. in recent times similar to a man can be 6 ft elevated 190 pounds wearing size 14 shoes and individual hold a 4 inch penis,

Gyno diagnosed me next to bv yesterday?

Normally a girl beside big height hold big one and wid smaller height small but the difference is almost beside the point.

Hi i be wandering if pad or tampons are better?

Just forget going on for the hand and foot rule! Why are you so concern? haven't see one previously? Does it issue how long? Or you requirement to verbs is how tight it is!

there's brown discharge and a foul smell exiting my vaginal nouns as much as i verbs it. whay's going on?

If she's bolegged, strap a board to yer