My 7 year old cocker developed a lump on his back about a year ago, I asked the vet to look at it and he said it was probably just a fatty lump due to age, it doesn't hurt him and you can move it under his fur and he doesn't react, the vet did say if it grew or was causing discomfort to bring him back.
I can't say for sure but I do think it's slightly bigger and now another one has appeared on the other side of his back. Again it doesn't bother him.
Is this just normal as dogs get older, I'm scared to take him back in case they say cancer or something. I know that sounds ridiculous but just wondered if anyone else's dog has developed these?