Due to their small size, location, and strength, microchips are almost unbreakable. They are built to perform in every situation and last for a really long time. In rare cases, a pet's body may damage its microchip, or its body may reject the microchip after it has been implanted. In such cases, the chip has to be removed from the dog’s body. This involves a proper surgical procedure, proper anesthesia, and professional help from trained medical professionals.