What Is Microchip (Pet Microchipping)?
A pet microchip is a tiny radio-frequency identification (RFID) device, about the size of a grain of rice, implanted under the skin between the shoulder blades. Each chip carries a unique identification number linked to owner contact information in a registry. Microchipping is a permanent form of identification that cannot be removed, altered, or lost like a collar and tag.
Understanding Microchip (Pet Microchipping)
The implantation procedure is quick (similar to a vaccination injection), typically requires no anaesthesia, and takes only seconds. The chip is inserted using a large-gauge needle and causes minimal discomfort. Unlike GPS trackers, microchips are passive devices — they have no battery and emit no signal. They are read only when a scanner is passed over them at a vet clinic, shelter, or by animal control.
The critical step that many pet owners miss: implanting the chip is only half the process. The chip's unique number must be registered with an owner's current contact information in a searchable database. An unregistered microchip cannot help reunite a lost pet with its owner. Registration must also be updated if you move or change phone numbers. Multiple competing registries exist — consider registering with a universal lookup site like PetMicrochipLookup.org.
Microchipping is legally required for dogs in several countries including the UK, Australia, and many EU nations. In the United States, it is not federally mandated but is strongly recommended and required by many municipalities and airlines. Most vets and shelters routinely scan every animal that comes through their doors for a chip.