I come into this discussion in the middle, having missed some of it due to the weird subject title for this discussion. I find myself compelled to comment.
We've owned at least 20 dogs, plus a few cats in the years since microchips have become common; not a single problem at all over their entire life spans. We also know many dozens of others who are in similar boat. While we can't attribute any problems to microchips, we can attribute the recovery of some of these dogs who would likely have never been returned to their owners had they not been identifiable with microchips.
Perhaps if someone could cite some factual statistics it might be helpful to determine if a dog is more likely to become lost, or more likely to suffer medical problem from a micro-chip. We've all heard of many cases of the former. Personally , no dog owner I know can recall coming across a case of the latter.
As someone else posted here a bit ago, the best evidence only shows possibly a couple cases where the micro-chip acting as a foreign object in the body has been possibly attributed to causing cancer….. this out of the millions of animals that are micro-chipped.
I have to be quite dubious of these claims when the source of those claims doubts such expert bodies as the American Veterinary Medical Assn. or the Federal Food & Drug Administration while believing the claims of a relatively small group of who knows what on the Internet. There's plenty of similar evidence found on other Yahoo groups for Cancer cures in Mexico, too.
Ed in Oregon
