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How to Increase the Likelihood of a Lost Pet’s Safe Return

Photo of Cardiff Collar Identification Christmas Presents Our awesome dog caretaker Peter gave Cardiff a collar embroidered with his name and my phone number. Thanks Peter!

This article originally appeared on Dr Mahaney’s The Daily Vetcolumn on petMD.

If you are ever separated from your pet, how will you be reunited? No, I’m not referring to the grandiose vision of you and your pet running across an open field and falling into each other’s grasp. Although this idyllic image sounds great, a more likely scenario is a trip to a veterinary hospital or shelter facility to pick up your pet after tags, collar, or microchip has facilitated his identification.

My perspective comes from having helped lost pets reunite with their owners on innumerable occasions in my clinical practice. Good Samaritans bring in misplaced cats or dogs, sometimes having the outward appearance of being healthy and sometimes obviously injured.

In nearly every circumstance, these stray pets lacked tags and a collar. Fortunately, absent external identification doesn’t mean the pet will be permanently lost. An implanted microchip can provide an additional layer of probability that your pet will be safely returned. Additionally, new technology exists that connects pets to owners via text, e-mail, or smart-phone mapping.

Here are my top recommendations for responsible owners to appropriately identify their pets.

Collar with Tags

Foremost, I recommend that pets always wear a cervical (neck) collar. Some pet owners remove an indoor dog or cat’s collar and neglect to recognize their potential to escape. Outside the confines of your home, your pet will lack an immediate means for identification by a good Samaritan.

A collar should be tight enough to prevent slipping over your pet’s head, yet loose enough to permit two of your fingers to easily slip between the neck and the collar. If you have a brachycephalic (short faced) dog or any other type of breed (mixed or purebred) that is prone to hypoplastic (collapsing) trachea, then using a thoracic (chest) harness is a safer practice than a cervical collar for restraint and walking.

Regardless of your choice of cervical or thoracic gear, attaching an identifying tag is essential. At a minimum, the tag should feature your dog’s name, your phone number, and your city of residence. Whether to include your name, address, e-mail, or other contact information is a matter of personal preference. Tags provided by the veterinary hospital that have your pet’s rabies vaccination along with a tag from the manufacturer of your pet’s microchip create an additional layer of visual identification.

As tags can fall off and some pets are simply resistant to a stranger’s advance, I recommend having your pet’s collar or harness embroidered with his name and your phone number.


As tags can detach and collars can be removed, the most permanent identification practice (besides tattoo) comes from having a veterinarian implant a microchip into your pet’s subcutaneous space between the shoulder blades (i.e., the "scruff"). When scanned, the manufacturer and corresponding number of the microchip are revealed. The shelter or veterinary hospital representative performing the scan can then communicate with the microchip manufacturer.

According to the Journal of the American Veterinary Medical Association’s (JAVMA) article,
Characterization of animals with microchips entering animal shelters (July 15, 2009, Vol. 235, No. 2, Pages 160-167):

… the high rate for return of microchipped dogs and cats to their owners supported microchipping as a valuable permanent pet identification modality; however, issues related to registration undermined its overall potential. Bundling of microchip implantation and registration, point-of-implantation data registration, use of annual compliance and update reminders, and providing access to all registries are potential solutions.

Provided your information has been kept up-to-date, you can be contacted and reunited with your lost pet. Yes, there are occasions where an owner cannot be readily located as a result of not having kept their information current with the microchip’s manufacturer. Having been faced with this situation, I feel badly for the pet who is merely an innocent bystander in a circumstance stemming primarily from owner irresponsibility.

Which microchip to use is a topic of varying opinion and depends (in part) on your intent to stay within the U.S. or to travel internationally (International Standards institute the ISO chip). Two of the major manufacturers of microchips include AVID and Home Again, but other microchip providers exist.

Novel Pet Identifying Technology

At BlogPaws 2011, I became familiar with the novel means of tracking your dog’s location via the Tagg tracking system. Reportedly, "Tagg uses advanced GPS tracking technology to allow you to see where your dog is and receive a notification if he or she wanders off. The lightweight tracker attaches to your dog's existing collar and is designed to be worn at all times, even while swimming."

If your Tagg’d pet moves beyond a set distance, you receive notification via text message or e-mail. You can then find your pet on the Tagg Map and receive directions to the pet’s location via a computer or smart-phone. It’s great that Tagg embraces technology to create a new form of pet identification to be used in addition to a collar (or harness), tags, and microchip. (It is not yet available for cats or small dogs.)

I recommend owners use more than one means for identifying their pets, as there always exists the potential for human or mechanical error. Increasing your pet’s likelihood of being safely returned is worth any inconvenience or expense.

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Copyright of this article (2012) is owned by Dr Patrick Mahaney, Veterinarian and Certified Veterinary Acupuncturist. Republishing any portion of this article must first be authorized by Dr Patrick Mahaney. Requests for republishing must be approved by Dr Patrick Mahaney and received in written format.

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