Losing a pet is every owner’s worst nightmare, and unfortunately, it happens more often than you might think. Collars and tags can fall off, but a microchip provides a permanent, reliable way to give your furry friend the best chance of being reunited with you. At Lenity Veterinary Specialists, your San Francisco veterinary clinic, we believe microchipping is one of the most important steps you can take to keep your dog or cat safe.

In this blog, we’ll cover how microchips work, why microchipping is essential for dogs and cats, what to expect during the procedure, and common myths we hear from pet parents. By the end, you’ll see why this small device offers such big peace of mind.

Why Microchipping Matters for Dogs and Cats

Every year, thousands of pets go missing. Some slip out the front door, others dig under fences, and some get separated during emergencies like earthquakes or wildfires. Sadly, many lost pets never make it home — not because no one found them, but because there was no way to trace them back to their families.

A microchip is a permanent form of identification that stays with your pet for life. Unlike collars and tags, which can get lost or removed, a microchip is implanted under your pet’s skin and carries a unique identification number. When scanned at a shelter or veterinary office, that number links to your contact information in a national database.

Studies show that microchipped dogs are more than twice as likely to be returned to their owners, while microchipped cats are more than 20 times more likely to be reunited. That’s a statistic worth paying attention to.

The American Veterinary Medical Association has a blog on microchipping, which you can read here. Or, click here to read the AKC’s article on it.

How Pet Microchips Work

A microchip is a tiny device, about the size of a grain of rice. It’s not a GPS tracker and it doesn’t store your personal details directly. Instead, it contains a unique ID number. When a scanner is passed over your pet, the chip transmits the ID number via radio frequency.

That number corresponds to your profile in a secure database. As long as your information is kept up to date, shelters and veterinary staff can contact you right away if your pet is found.

It’s important to note: the microchip only works if your information is registered and current. Moving to a new house or changing phone numbers without updating your pet’s microchip information can make the device useless.

The Microchipping Procedure

Many pet parents are surprised to learn that microchipping is quick, safe, and nearly painless. The procedure is similar to a routine vaccination:

• The microchip is inserted under the skin between the shoulder blades using a sterile applicator.
• Most pets don’t even flinch, and anesthesia is not required.
• The process takes just a few seconds and provides lifetime identification.

At Lenity in San Francisco, we often microchip puppies and kittens during their first wellness visits, but the procedure can be done at any age. Some owners choose to have it performed during a spay or neuter, but it’s not necessary to wait.

Common Myths About Pet Microchips

Because microchips are still misunderstood, we often hear questions and concerns. Let’s clear up a few common myths:

Myth: Microchips let me track my pet’s location in real time.
Not true. A microchip is not a GPS tracker. It provides ID only when scanned.

Myth: Microchipping is painful or dangerous.
In reality, the procedure is very similar to a vaccine injection and considered extremely safe.

Myth: Only outdoor pets need microchips.
Even strictly indoor cats and dogs can escape unexpectedly. Microchipping provides a safety net for every pet.

Myth: My pet already has a collar, so we don’t need a microchip.
Collars and tags are great, but they can be removed or lost. A microchip is permanent.

Benefits of Microchipping Dogs

Dogs are naturally curious and sometimes adventurous to a fault. Even well-trained pups can bolt after a squirrel or wander too far from home. For dog owners, a microchip:

• Provides lifelong identification, no matter where your dog ends up
• Increases the odds of reunion if your pup is found by animal control
• Helps prevent mistaken identity in shelters, especially for breeds that look similar
• Offers peace of mind during travel or boarding

Benefits of Microchipping Cats

Cats are notorious for their ability to squeeze through small spaces or dash out doors. Even indoor-only cats face risks if they escape. For cat owners, microchipping:

• Provides a permanent ID even if your cat loses their collar
• Greatly increases the chances of a lost cat being returned (especially since few cats wear collars consistently)
• Protects against being mistaken for a stray and rehomed without your knowledge
• Is especially vital for cats in urban areas like San Francisco, where outdoor hazards are common

Keeping Microchip Information Updated

The microchip itself doesn’t expire, but your contact details can change. To keep the system effective:

• Register the chip immediately after implantation
• Update your profile whenever you move or change phone numbers
• Include both primary and secondary contacts if possible
• Ask your vet to scan the chip at yearly visits to confirm it’s still working properly

Without current information, a microchip can’t do its job.

What If Your Pet Gets Lost?

If your pet goes missing, a microchip can be the difference between days of searching and a quick reunion. When a shelter or clinic scans your pet, they’ll call the microchip registry, which contacts you right away. Many registries also allow you to flag a pet as “lost,” increasing the chances of alerting local shelters quickly.

Meanwhile, you can help by:

• Contacting nearby shelters and animal control facilities
• Sharing photos and descriptions on local lost pet groups and neighborhood boards
• Ensuring your voicemail and phone settings allow calls from unknown numbers (since shelters may call from landlines)

Microchipping is just one part of keeping Fido safe on those walks. Click here to read our blog on walking dogs.

Fun Microchip Fact

The first pet microchips were introduced in the 1980s, and since then, millions of pets worldwide have been reunited with their families thanks to this simple technology.

FAQs About Pet Microchipping

Is microchipping required by law?

In many areas, yes for dogs, but not always for cats. Regulations vary, but it’s always a smart choice regardless of legal requirements.

Does microchipping hurt my pet?

Most pets tolerate it very well, much like a routine vaccination.

Can a microchip move inside my pet’s body?

Chips can occasionally shift slightly from the implantation site, but this doesn’t harm your pet or affect the chip’s function.

Do I need to replace the microchip over time?

No. Microchips are designed to last a lifetime.

How much does microchipping cost?

Costs are generally affordable, especially compared to the peace of mind and protection provided.

Visit Our San Francisco Area Veterinary Clinic for Microchipping

When it comes to your pet’s safety, a microchip is one of the simplest, most effective tools available. Are you searching for a trusted “vet near me” in the San Francisco area who can microchip your dog or cat? At Lenity, our veterinarians provide quick, safe microchipping along with full guidance on registration and aftercare.

Give yourself peace of mind and give your pet the best chance of finding their way back home — call us today to schedule a microchipping appointment. You can also visit our Service page here for more information about our San Francisco animal clinic and the pets we treat.

Disclaimer: This blog is meant for informational purposes only. Always consult with your veterinarian for advice tailored to your pet’s specific needs.