Callosity is defined as an excessive increase in the epithelial layer of the skin with thickening. There is also another form called subungual hyperkeratosis or subungual callosity affecting the nails.
Thus, the location of the callus will depend on either the type of foot or a pathological condition of the underlying bone that may be due to a myriad of factors.

Callus treatment involves routine professional care by the podiatrist with periodic checksfor both hard and soft corns.
Podiatric therapy consists of:

• In surgically cleaning hyperkeratotic accumulations (callosities) and reducing pressure on these prominent regions;
• In checking that in the shoe the space between the toes is adequate;
• In recommending the use of custom silicone pads or felts.