Certain shape foot types have bones which are lower to the ground than neighboring foot bones. As a result, when walking, the bone lowest to the ground assumes a great amount of pressure. It wears away at the fat cushion protecting the skin on the sole of one’s foot. As a result the skin tries to form its own protective barrier by building up thicker skin. The skin on the sole of the foot can only become so thickened before it starts to cause pain, pressure, and even break down to an open wound. Fat grafting n may rejuvenate the fat pad between the bone and skin on the sole of the foot to limit pressure, pain, and callus formation.