There is a small amount of discomfort compared to a regular vaccine injection, due to the larger size of the needle used to insert the microchip. The chip is inserted at the back of the pet’s neck, where the skin is loose. Quite often, pets are microchip while under anesthesia for a spay or neuter surgery, but a microchip can be inserted without anesthesia. Microchipping is a safe and effective way to identify your pet in case he or she becomes lost.