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Cloudy yellow urine

Straza

Junior Guinea Pig
Joined
Sep 18, 2025
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Hi all, we got guinea pigs last week. It's the first time we've had them. I noticed when I was giving them play time that there was some cloudy yellow what I assume is urine. Looking online some things made it sound normal and others that I would need to see a vet. Is anyone able to advise please?
 
Welcome to the forum

Yellow or Milky urine is normal.
Milky urine is normal - the body’s way of excretinf excess calcium - to a certain extent. It will leave chalky like deposits on bedding. If it happens a lot it can mean there is a problem with the calcium intake in the diet. If it feels gritty rather than chalky then do see a vet as they can mean crystals which is the precursor to bladder stones.

Any pain or squeaking when peeing also warrants a vet visit.

I’ve added a guide below which explains more

Wiebke's Guide to Pees and Stones
 
Welcome to the forum

Yellow or Milky urine is normal.
Milky urine is normal - the body’s way of excretinf excess calcium - to a certain extent. It will leave chalky like deposits on bedding. If it happens a lot it can mean there is a problem with the calcium intake in the diet. If it feels gritty rather than chalky then do see a vet as they can mean crystals which is the precursor to bladder stones.

Any pain or squeaking when peeing also warrants a vet visit.

I’ve added a guide below which explains more

Wiebke's Guide to Pees and Stones
Thanks so much, that's really helpful. Yes they were sitting on some cardboard so it looked quite cloudy but when I wiped it away it wasn't gritty at all. Appreciate the quick response :)
 
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