I replied to a post about a six yr old ferret that showed wheezing noises and suggested a chest xray +/- an ultrasound of the heart to check for heart disease b/c this is likely in an older ferret with such signs but it is not the only possible cause of the signs. Yesterday someone else posted about a young ferret with similar signs and they had seen my previous post and were worried about their ferret having heart disease too. While this is possible, it is unlikely based on the ferrets age. A chest xray would still be advised to check for anything abnormal in the chest (for eg. lymphoma) and if the xray were normal then I wouldn't worry as much as it may just be a noise that your ferret makes and not have any pathologic cause. Hope this helps! K. Ball DVM [Posted in FML issue 3321]