I had a hamster for a good two years, but the last six months of his life or so, he developed a giant tumor that was really quite unsightly and looked painful for him to be dragging around! When he finally did pass away, it was almost the size of his head, puffed-cheeks included. I asked around with my friends that also had hamsters and found out that a couple of them had previously also had their hamsters develop these tumors. I've looked around a bit but haven't had much success in finding out what it might be. Anyone have any experience with it?
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