Sorry to hear about your ferret. Prostate problems are not common in dogs and cats. Prostates becoming big even to cause a urinary blockage are rare in dogs and cats. Unfortunately we do see prostate problems in male ferrets with adrenal gland disease. It can become fatal if the adrenal gland disease and the enlarged prostate are not treated. Hopefully when the new edition of the book Ferrets, Rabbits, and Rodents comes out, it will have more on treatment options for adrenal gland disease and for prostate problems, so more vets will be aware of this serious problem. Again sorry about your loss. Jerry Murray, DVM [Posted in FML issue 3438]