Adverse reactions from the insertion of the microchip are highly unlikely, with very few reported cases. There can be situations when the chip does not work, or they might migrate out soon after implant and fall out. It is a good idea to have your vet scan the chip at each visit so that you are aware of its location. In case the chip cannot be found, your pet must have a collar with a tag as a second security measure. The chances of your pet getting lost are far more likely than the occurrence of an adverse reaction, and the safety and peace of mind that this tiny device offers far outweighs the risk. Microchipping is becoming a legal obligation in some countries, including New Zealand.
There are many different brands of microchips, and it would be best to speak to us about a suitable option for your pet. In essence, it is a quick and inexpensive way to help ensure you and pet will be happily reunited.