I'm really scared right now. I just took my hamster how to play, and I noticed that there was a "bump" growing? It's near the right side of her underbelly, and sort of between her front and back leg. It's circular, and not droopy, but it's... kinda big. Not HUGE. Maybe a little bit bigger than the size of a looseleaf hole. I don't know what's wrong!!!! Is it a tumor? A bladderstone???? Please help me!
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