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My guinea pig has dark orange pee. Is it serious? What should I do?

Updated On September 23rd, 2025

Pet's info: Small Animal | Guinea Pig | Female | unspayed | 2.5 lbs

My Guinea pig is about 3 years old. She has a history of 1 minor UTI before. Recently I noticed she has dark orange pee and I don’t know what it is. Is it serious? What should I do?

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2 Answers

Most Helpful Answer

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Answered By David Elbeze, DVM, MRCVS

Veterinarian

Published on May 26th, 2020

Guinea pig pee comes out clear, but can oxidize and turn orange when it's exposed to the air. You might not have anything to worry about, just try to catch her on the act, if it is clear she is likely fine.

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    Answered By Dr. Strydom, DVM

    Veterinarian

    Published on November 18th, 2019

    Guinea pigs have porphyrinuria (orange/reddish colored by-products from plant components in the urine) is normal. The urine darkens to a red-brown after exposure to light. This is nothing to worry about. I would only worry if you see actual blood in the urine.

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