What really is a cracked heel? Well it is a common foot problem that occurs when your heels are dry leading to cracks and splits.
It is common place to ignore a minor heel crack but if left untreated the heel may fissure and become deeper and make it painful to walk.
The first sign is the formation of dry, hard skin around the heel — these are called calluses so as you walk and put more pressure on the area, the fat pads under your heels expand, causing these calluses to start to develop small cracks.