My hamster has some yellow liquid in his cage?

I literally just cleaned it, he goes on his clean wheel and comes off. When I look there's a thick yellow white liquid on it. He stops and then kept running now its all over the wheel.

He didn't seem to bothered by it, and I've always wondered what was caked on his wheel...

Is it just really thick pee? Or diarrhea? He had a solid poop coming out right before and after...

Okay. Just wondering if its pee or something bad

:)

My hamster has some yellow liquid in his cage?
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