[lynzy420]

I took my Miss Mini to the vet just a couple days ago for this same reason. Turned out she has acid reflux. She did not act sick but the smell was horrendous.

When I got to the vet and she started asking questions etc., I was able to see that I missed more than 1 symptom of this.

So as you can see there are many possibilties; but, remember bad breath is usually a symptom of something....I would have the vet check it out to be sure.

Miss Mini had baby teeth at the time of her spaying as well, they removed them during the surgery, and I recall that a couple of them were in bad shape. (funny the things you remember when reading some of these posts!)

Nancy 1999 is sooo right about talking to your vet re: experience with small dogs...very important question to ask.