Microchipping dramatically improves outcomes for lost companion animals. Understanding the welfare benefits and best practices helps ensure more animals are reunited with their families.
Microchipping prevents the welfare harm of prolonged separation, life in a shelter, and euthanasia of animals whose owners cannot be found. The procedure itself causes momentary discomfort equivalent to a vaccination — brief and proportionate to the lifelong protection provided. The most common reason microchips fail to reunite animals with owners is unregistered or outdated registry information. Microchipping without registration is almost useless. The welfare case for mandating microchipping of all companion animals is strong: reunification rates improve dramatically, shelter burden decreases, and euthanasia of owned animals is reduced. Keeping registration information current is as important as the chip itself.