[lil fu fu girl]

I do not have mine microchipped.
I know that people are very concerned about losing their pets. However, Dr. Benezra, Director of the Cancer Biology Genetics program for Memorial Sloan-Kettering Cancer Center has proven a definite link between RFID microchip transponders and malignant sarcomas in rats , mice and dogs. These sarcomas form and surround the chip and then can metastisize to other parts of the body. These implants were unequivocally identified as the cause of the cancer.
To me,in my opinion, that is too much of a risk.
I have taken determined measures to train my dogs not to run out the door, or run away. Stay is one of the first commandments.
But like I always say, they are your animals and you have to do what you think is best for them. Best of luck