Bites wounds are one of the most common reasons dogs are seen for emergency appointments with their veterinarians. The dog’s teeth and jaws are very powerful and the wounds they inflict can crush or tear muscles and skin, penetrate through the chest wall and cause lung collapse, or cause serious or fatal damage to intestinal organs. All bite wounds are considered to be contaminated and/or infected. Left untreated, the bacteria in an infected bite wound will cause a localized abscess or more generalized cellulitis that spreads through the surrounding area. All bite wounds should be treated by a veterinarian as soon as possible. Treatment will depend on the extent of the injuries, your dog’s general health, and the location of the wounds.