The primary symptom of corns and calluses is abnormally thick and hardened areas of skin that typically appear on the toe joints and soles of the feet, though they can actually develop anywhere.
Corns or calluses are indicative of a bigger problem, which is poorly functioning arches of the feet.
What causes corns and calluses?
Wearing unhealthy footwear over extended periods of time causes the feet and their function to maladapt.
Corns and calluses occur when movement of the foot inside the shoe creates localized points of excessive pressure, rubbing, and friction.