Despite the differences between countries, the average foot size for women changes between US women’s 5 to 10 (EU 35 to 42), whereas the one for men changes between US men’s 7 to 10 (EU 40 to 44), except a few ones like [a man from Europe I saw on IG having EU 38 feet which is pretty small for a male and wearing women’s shoes especially the ones with pointy toes and stiletto heels](https://instagram.com/withhighheels?igshid=MzRlODBiNWFlZA==)
Saw a few men with feet bigger than US 10 too, like Shaquille O’Neal with size 22 and Dwayne Johnson with size 14.
Why is there such a difference?
In: 1053
Because men are taller.
> Why are men taller?
Because [oestrogen makes the bones grow shorter](https://www.quantamagazine.org/males-are-the-taller-sex-estrogen-not-fights-for-mates-may-be-why-20200608/#:~:text=Because%20men%20are%20taller%20than,effect%20that%20nature%20was%20selecting.) than men, including feet bones.
Fun fact: during pregnancy, the woman’s body produces more “*relaxin*”, which [loosens the hips ligament fibres](https://www.verywellfamily.com/do-your-hips-return-to-their-pre-pregnancy-size-after-childbirth-5204988#:~:text=Why%20Your%20Hips%20Expand%20During,a%20baby%2C%20begins%20to%20increase.) to widen the hips in precision of the delivery.
Relaxin also causes the feet to grow by as much as one size.
Men’s hands are larger than women’s, and are shaped slightly differently, being far wider… I always just assumed that feet and hands were closely related, physiologically speaking (in most primates they are indistinguishable), so whatever mechanism causes men to have larger hands also manifests itself in larger feet. I never thought it was simply related to height… You just sort of “know” when you are looking at the hands of a man or woman, even if that is all that you can see.
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