The Reds boss has already seen both Xabi Alonso and Daniel Agger ruled out with broken bones in their feet this season and has questioned whether the growing list of sufferers is something to do with the modern day boot.
"Because I am really old, I like the old boots," Benitez told liverpoolfc.tv. "But now they change everything but I don't know if that is the problem.
"Technology is very important but before we were playing with six studs and that was enough, now we see 13 or 12 or eight in different positions.
"But really I don't know. You cannot blame the boots but something is wrong and maybe the big companies need to analyse them."