Help!

[Sammie113]

I have a 1 3/4 year old pure bred Chihuahua male named Rey.
About 3 day's ago I found a lump on his back, near his hip bones.
It's under the skin, but above the muscles or so it feels, and about the size of a dime. It doesn't seem to bother him at all, and he eats like normal, plays like normal etc.
He did get shots where the bump is, but his shots (he got 3) were 2 weeks ago on July 30th.

Everyone I've talked to has mentioned Cancer
Is there anything else this could be?

[Dignity]

I don't know much about cysts, but it could be a cyst. It also could be a fatty lump. You'll want to have the vet check it out to see what it is.

[alimel]

This could be a fatty tumor. The only way to know for sure is having your vet check it, they will extract fluid from it and in most cases they can tell you in the office.

[EmmaGirl]

Could be a reaction from the shot or a lipoma. I would have the vetcheck it out just to be sure.