The term 'shoe blemish' can refer to any type of damage or discoloration on a shoe. One common type of shoe blemish is a SCUFF, which is a shallow mark or scratch on the surface of the shoe. Scuffs are usually caused by rubbing against a rough surface, such as a sidewalk or a wall. They can also be caused by dragging the shoe along the ground. Scuffs can be removed with special cleaning products, but they can also be prevented by wearing shoes with protective soles.