So I have posted on this site before about my cat Trust. He is going through a battle with anemia, over three months in still no idea what's causing it. Well long story short my vet is leaning towards it may be leukemia in his bone marrow just because treatment of predisone, has not really helped him. Like most owners when I first heard this I was upset but in doing research online I guess I have some questions. We adopted trust from a local shelter about 16 months ago so I don't know his history before that, however since we have owned him he is the only cat in the house, and has never been outdoors. He is a larger cat weighing 13 lbs and it's a fatty 13lb not muscle again how we adopted him. He urinates alot when I say alot when he goes it's about the size of baseball if not Alittle larger that we have to clean out. Now Like I said I have questions when we adopted him he had leukemia test and FIV test before they allowed him home, so with him being an indoor only cat how realistic is it that he has leukemia, when what I have read seems lIke it is a contact spread thing. I just tend to think in my research it may be in a way pointless to spend the money on a bone marrow test when seems like odds are it's not that. Plus he already tested negative when we took him to the ER to treat the anemia. Now I am Alittle a shammed to admit that in no knowing it was bad for him he would play with an onion batting it around the house like a ball. On his treatment for the animia he has had a blood transfussion and been on pred, atopica, pepcid and monoclycline( incase blood paracite) numbers really haven't improved much he got.up to 30 is pcv but has since in 3 months dropped to 17.5 just looking for ideas.