I posed this same question to the FHL, but since no answers are forthcoming yet, I thought I would post here as well. One of my ferrets, (male), keeps getting recurrent kidney infections. Our Vet thinks it is secondary to something else, but cannot find anything else wrong. Antibiotics help, but the minute he comes off them, the kidney infection comes right back. Has anyone here experienced anything of a similar nature with their ferrets. Thought? Ideas? For what it's worth, he has had a full blood work up and ultrasound too and urine tests. Thanks, Holly, Icarus & Cato [Posted in FML 6880]