Hi, In response to Risa's query on spleen problems in ferrets, a polecat jill called Nipper had her huge spleen (five inches long) successfully removed last year. The spleen had been visible in her underside and could have burst at any minute killing her. There was risk of internal bleeding with the op but all was well. I have a photo of the spleen and Nipper and can get more info from the reader ie: details from the UK vet involved etc. Best wishes, Jenny Loweth, editor Ferrets First magazine (UK) [Posted in FML issue 4127]