ID
A microchip is a tiny device that permanently identifies your pet if they get lost. Learn how it works, why it's essential, and what to keep updated.
Every year, millions of pets go missing worldwide. Collars and tags can fall off, but a microchip provides permanent identification that stays with your pet for life. A microchip is a rice-grain-sized device implanted under the skin between the shoulder blades. When scanned by a vet or shelter, it reveals a unique ID number linked to your contact information. Studies show that microchipped dogs are returned to owners 52% of the time vs 22% for non-microchipped dogs.
- A microchip is a permanent form of identification that cannot be lost or removed
- The implantation procedure is quick and painless — similar to a vaccination
- Microchips do NOT have GPS — they only work when scanned with a compatible reader
- Keeping your registration information updated is critical — an unregistered chip is useless
- In Macau, microchipping is recommended for all pets and required for international travel
- Cost: typically MOP 200-500 — a small price for permanent identification
How Microchips Work
A microchip is a passive transponder — it has no battery and doesn't transmit. When a scanner passes over it, the scanner's electromagnetic field activates the chip, which transmits its unique ID number. This number is then looked up in a database to find the owner's contact information. The chip is injected under the skin with a needle — no surgery, no anesthesia needed. Most pets don't even notice the implantation.
Registration is Everything
A microchip is only as good as its registration. If your contact information isn't in the database — or is outdated — the chip is useless. After implantation, you must register the chip number with your name, address, phone, and email. If you move or change phone numbers, update your registration immediately. Many pet owners forget this critical step.
Microchipping for Travel
If you plan to travel internationally with your pet, microchipping is mandatory. Most countries require an ISO 11784/11785 compliant microchip (15-digit, 134.2 kHz). The chip must be implanted BEFORE rabies vaccination for the vaccination to be linked to the chip. For travel from Macau, ensure your chip meets ISO standards.
Myths and Facts
Myth: Microchips cause cancer. Fact: Extremely rare — studies show no increased cancer risk. Myth: Microchips have GPS. Fact: They are passive devices with no power or location capability. Myth: A microchip replaces a collar/tag. Fact: Use both — tags allow immediate return by anyone, while microchips provide permanent backup. Myth: My indoor cat doesn't need one. Fact: Indoor cats escape more often than you think.
- Your pet is not yet microchipped (any age can be chipped)
- Your pet's microchip registration information needs updating
- You are planning international travel with your pet
- You found a lost pet and want to check for a microchip
- Your pet's microchip has migrated or cannot be detected during scanning
- You want to verify your pet's microchip is properly registered
RVC
Royal Veterinary Center provides microchipping services with ISO-standard chips suitable for international travel. We register the chip with your information immediately after implantation and can verify existing chips during any visit. If you've adopted a pet, we can scan for an existing microchip and help update the registration. Call +853 6677 6611 to schedule.
+853 6677 6611