Why do my pinky toes get painful hard calluses when wearing normal sneakers?

Why do my pinky toes get painful hard calluses when wearing normal sneakers?

1. Introduction Painful, hard calluses developing on the pinky toes when wearing seemingly normal sneakers represent a distinct biological defense mechanism triggered by chronic mechanical friction and localized structural compression. Despite a sneaker appearing comfortable, if the internal geometry of the toe box does not perfectly accommodate the natural width and splay of the forefoot, … Read more