Case studies of cancer, death & disease from microchip implantation go back as far back as 1990, though they are still made, profited from and implanted without informing pet parents of risks and reported outcomes. Adverse event reporting is voluntary.
No studies were done before the FDA approved microchips for use.
The FDA claimed they did not know microchips caused cancer, death and things like paralysis before approval.
Instead of stopping their use, they changed the name of the chip.
Breeders are allowed to implant microchips. They are exempt from
Many lawsuits have been filed against microchip manufacturers as well as veterinarians for implanting without informed consent.
Chips do not track an animal or use GPS. If your animal gets lost, they can't be found with a chip. Only if someone finds them and brings them to a vet or shelter can they scan the information and potentially link your animal back to you.
Confirmed cancer from microchips:
Aggressive, lethal tumors are confirmed to develop at animal microchip implant sites.
Cases show dogs and cats developing epitheliotropic lymphoma and other cancers at the chip location.
Multiple long-term studies showed tumors in mice and rats, some metastasizing to the lungs, heart, and lymph nodes. In one study, five of eight animals died directly as a result of these microchip-induced tumors.
Other severe outcomes and death:
Spinal Cord Injuries: A 2022 report in the Journal of Veterinary Medical Science detailed cases of paralysis in puppies following microchip implantation. Improper injection technique led to the chip entering the spinal column or causing severe trauma affecting mobility, proving that errors can have immediate, life-altering consequences.
Case studies have shown microchip implant migration leading to fatal outcomes. In a kitten, the chip migrated to the brain stem causing death.
Case showed a Chihuahua that died from excessive bleeding shortly after implantation.
There are veterinarians who insert & have inserted microchips without the owner knowing.
There are many documented instances where veterinarians implanted microchips without prior explicit consent, often during spaying or neuter.
Some veterinarians argue that if an owner signs a consent form allowing for medical care or if the animal is already under anesthesia, implanting a chip is a "kindness" that significantly aids in recovering the pet if it is lost or stolen.
This practice is considered unlawful by some owners and legal experts, as it bypasses informed consent.
Resources