Today, more and more vets are becoming adamant about not microchipping their patients. However, is it wise? After all, studies involving mice and rats have shown that test animals have developed aggressive and lethal microchip-induced cancerous growths, that chipped zoo animals have developed microchip-associated cancerous growths and that dogs and cats have developed aggressive cancerous growths at the site of their microchip implants.

We’re sad to see the experiments being conducted on animals over microchips, but think it’s important people know this information before making the big decision whether to have this risky procedure done to their own pet.

“Animals have also experienced neurological damage as a result of microchips: “A 1.6 kg, six-week-old Tibetan Terrier was admitted with a 12 hour history of acute onset of progressive tetraparesis following insertion of a microchip to the dorsal cervical region,” write T. J. Smith and Noel Fitzpatrick of Fitzpatrick Referrals in the UK.”

Dr. Stephen R. Blake, DVM, CVA, CVH (a long time veterinarian) does not recommend any of his patients be microchipped (which fail at least 30% of the time according to Dr. Blake) and instead do a collar and reliable tag. Even though collars might fall off, at least they won’t cause cancer.

Some vets recommend tattooing over microchipping

Some vets recommend tattooing over microchipping but we’d think this would be painful (and some think it’s not the healthiest alternative).

Dr Blake’s site also reports in great detail about the studies done on animals and the tumors and other dangers caused by these microchips.

Dr. Mercola and I did not have Miss Pye (18-year-old kitty rescue born in 1995) microchipped but in her younger days she always wore a collar and tag. Our rescue cat before her, Mio, lived to the ripe old age of 20 (a Persian purebred who was born very sick) and also was not microchipped but wore a collar with tag identification. Once they were fitted with good collars they never did come off (though we only recommend quick release in case they ever did get stuck on something).

So there you have it, folks. I would not recommend it personally and recommend a good collar with ID tags with all numbers on them, instead. And, make sure to keep a good eye on your pets and watch for wear and tear in the collar so you’ll be able to replace it before they lose it!

If your pet is already microchipped every source I’ve found says do NOT attempt to have the chip taken out which has its own set of risks. Just remember to think twice before microchipping your next pet.