Generally, biologically speaking:
Men have a urethra and an anus.
Women have a urethra, and anus, and a vagina.
Presumably, discounting mutations, birth defects, serious injuries, etc, most people have the same number of uh... head/face holes.
...
Allowing for rarer cases:
Also... intersex people exist... there have been at least a few recorded instances of duplicate and/or forking dongs...
And I guess we could also consider varying kinds of conjoined twins.
...
Also also, we could argue about whether milk producing mammaries constitute a topological 'hole'.