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My guinea pig's pee is white, gritty, or brown. Is it serious?

Updated On September 23rd, 2025

Pet's info: Small Animal | Unknown - Small Animal | Male | unneutered

Doctor I found that after my guinea pig peed it left a white compound , I've been observing it from 4-5 days and today I found it was little gritty too , and sometimes his pee is brownish too not always sometimes , doctor I am concerned is it a cause for problem?

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1 Answer

Most Helpful Answer

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Answered By Dr. Dayna, DVM, CVA

Veterinarian, Certified Veterinary Acupuncturist

Published on June 5th, 2018

Thank you for your question. Guinea pigs can certainly develop urinary stones. The white gritty substance you describe sounds like ge may be developing grit or urinary sand type stones. He may also have a large stone in his bladder. I would encourage you to have him evaluated by your veterinarian soon. An x-ray and urinalysis may be recommended. Best of luck and thank you for using Pet Coach.

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