A dog bite can cause a wound deep enough to break the skin. In these cases, the wound is cleaned and sometimes closed with stitches. Wounds will be closed if they're gaping open or in an area where scarring is a concern such as the face. If the wound is closed, it usually isn't completely closed. This is so that fluid can drain if the wound gets infected. Often, wounds will be left open to heal. A tetanus shot may be given.