咬伤是外伤的一种，由动物撕咬导致，常见猫、狗、蛇类咬伤。被人咬致伤也可包括在内。根据动物种类不同，对咬伤的处置主要有防止伤口感染、防止传染病、防中毒及止血等措施。

维基共享资源中相关的多媒体资源：咬伤

An animal bite is a wound, usually lacerations, caused by the teeth. An animal bite usually results in a break in the skin but also includes contusions from the excessive pressure on body tissue from the bite. The contusions can occur without a break in the skin. Bites can be provoked or unprovoked. Other bite attacks may be apparently unprovoked. Biting is a physical action not only describing an attack but it is a normal response in an animal as it eats, carries objects, softens and prepares food for its young, removes ectoparasites from its body surface, removes plant seeds attached to its fur or hair, scratching itself, and grooming other animals. Animal bites often result in serious infections and mortality. Animal bites not only include injuries from the teeth of reptiles, mammals, but fish, and amphibians. Arthropods can also bite and leave injuries.