>>13565099I don't know, but this is actually an interesting question. Calluses come and go, but some seem more stubborn that others. I developed calluses on both of my pinky toes maybe 9 or 10 years ago, and one of them disappeared, but the other keeps coming back every time I cut it off. Also, I kind of enjoy eating the callus after I cut it off. Something about eating my own skin is very pleasing, whether its the cuticle on my thumb or a callus on my foot. I would say it taste good , but it has a nice texture, and for some reason I just have an unconscious urge to eat my own dead skin.