A small cut may be deeper than a graze but it is usually the least problematic thing to heal. Initial bleeding will flush out impurities and then stop on its own accord. Fixed with a plaster, the smooth edges of the wound will generally grow together neatly (primary wound healing). A graze, on the other hand, may only affect the uppermost layer of skin (the epidermis) but its treatment is often complicated by foreign objects and dirt as well as heavy weeping.