Hi buddy ! It seems like you're worried about your hammy. I've kept 7 hamsters and I know this is nothing to worry about until his behavior changes !
Hamster pee color can vary and that wont be an issue unless its bloody color . It may pee yellow , whitish , orange or even brown ,these colors are absolutely normal and it sometimes depends on the water consumption and the particular food items.
You may consult vet but in my opinion its totally normal
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