A Microchip is for permanent pet identification. A veterinarian simply injects a microchip for pets, about the size of a grain of rice, beneath the surface of your pet's skin between the shoulder balades. If your pet gets lost or is taken to an animal shelter or a veterinarian, they will "scan" the chip to read it's unique dog or cat ID code. This is the number used to identify the pet and retrieve your contact information, which is used to contact you and reunite you with your pet. IMPORTANT- register your pet and always keep your contact information updated!!
Contact your veterinarian for more information regarding microchipping your pet.