Thanks again for all the insight on this issue. I read the article in a local newspaper and it was reported by AP news. I don't just jump to conclusions, but when I read they have caused malignant tumors it caused me to reconsider. I have gone throug...

Thank you everyone for your replys. I am going to do more research on the micro-chips. I guess when I read an article in a newspaper stating they caused cancer I thought of my Jessie girl and do not want to ever go through that again.

I have a 6 month old AKC registered labrador retriever, and have heard and read that microchips cause cancer. So I want some opinions on ear tattoos. I don't ...