My cat's microchip moved. Can a migrating microchip cause tumors?

Question

I just had my female cat Zoe spayed and microchipped about 2 weeks ago. She is about 7 months now. The microchipped has moved from her shoulders down to almost her armpit. Is this normal or more importantly is this ok??? She doesn't act like it bothers her but I've heard the chips can cause tumors so Im very nervous about this. Thanks you. Pet's info: Cat | Russian Blue | Female | unspayed | 6 months and 21 days old | 1lb

Kevin Sanada, DVM · Accepted Answer

This occasionally happens and is not a concern for any future problems. Most veterinary professionals and shelters will scan the whole animal when searching for the chip, so this should likely be picked-up in case she ever gets lost. Microchips are very safe and they are not a concern for causing tumors. There has been some suggestion that it might, but no solid evidence. It's definitely not something that I've never seen nor heard of in practice. I hope that helps and all is well with Zoe.

My cat's microchip moved. Can a migrating microchip cause tumors?

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