Halitosis or bad breath in ferrets can be caused by several factors--
periodonatal diease, mouth ulcers adn the like ( bad teeth) or it can be
caused by kidney / liver insufficiencies ( diseases) .  I would have a
ferret knowledgeable vet examione your ferret and do a blood panel to
check kidney / liver function if no cause can be found orally---
 
just my thoughts
 
Alicia
I am *NOT* a vet--
 
visit our shelter page at:
http://www.dartmouth.edu/~crassi/index.html
[Posted in FML issue 2465]