Dry skin, also called anhidrosis, refers to skin that is thin, brittle or flaking. Some parts of the foot may thicken and can even crack, causing heel fissures. It can also predispose the foot to develop corns and calluses which may be painful.
The terms ‘dry skin’ and ‘callus’ are sometimes used interchangeably. However, there are several differences between them. Callus is a result of biomechanical problems that occur at points of high pressure, typically under the foot.
It can occur anywhere on the feet, legs, or hands and may be caused by an underlying condition such as poor circulation, diabetes, fungal infection, or nutritional deficiency.