could be many different thin
gs, not necessarily cancer. I have forgotten the statistics now, but the percentage of lumps that are cancerous (in
both animals and humans) are lower than we thin
k. But it's natural to be concerned, and only a check-over at the vet's can put your min
d at rest.
Was the id chip put in
recently? There is a possibility there might be a reaction. If the lump came up really quickly, it is possible it might be an abscess (?