When it comes to injury of both foot would you say both feet injury of both foot injury. Or rather Bilateral foot injury of Bilateral feet injury?
I'd call it a double-foot or bipedal injury, but I'm going to move your question to our Medical English forum for a second opinion.
Students: Are you brave enough to let our tutors analyse your pronunciation?
He has an injury to both feet
He sustained bilateral foot injury.
Sorry: he sustained a bilateral foot injury.
Should I say my feet are swollen or is swollen
Teachers: We supply a list of EFL job vacancies

First, which do you think, anonymous?

is bilateral feet or foot - which is correct