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My guinea pig has gritty urine & pain. Is it high mineral water?

Updated On September 23rd, 2025

Pet's info: Small Animal | Guinea Pig | Female | spayed | 4 years and 2 months old | 3 lbs

My guinea pig has gritty, chalky urine deposits at her urethral opening (picture is of my shirt after holding her) and pain when urinating. Can this be caused by the very high mineral content in the ground water in my area? Her diet is as recommended. Her two cage mates have no issues. How can I help her? Thanks, Helena (from Denmark)

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1 Answer

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Answered By Dr. Massimo Orioles, DVM, Cert AVP, MRCVS

Veterinarian

Published on December 25th, 2018

These signs are compatible with the presence of a urinary tract infection due to crystals but stones may be present as well. Diet (certain food is rich in Calcium here you can see a list of them http://www.guinealynx.info/diet_order-cal.html), water mineral content and individual predisposition are all possible causes. If you already considered all these predisposing factors, a check up to rule out urinary /bladder stones is required. Hope this answer was helpful, but please do not hesitate to contact us again on the forum or by requesting a consultation if you have any more questions or to discuss it any further. Please find the time to give us a feedback about the consultation as that will be used to improve our service.

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