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Do dog bladder stone shapes (urate, struvite) look different on X-ray?

Updated On September 23rd, 2025

Pet's info: Dog | Miniature Schnauzer | Female | unspayed | 3 years and 1 month old | 14 lbs

My vet could not get a urine sample to diagnose the type of bladder stones my bitch has. In doing some research, I found pictures of types of stones. Are Urate stones always round and struvite stones always triangular? In the xray my dogs were round. Wouldn't the treatment be different for the two?

1 Answer

Most Helpful Answer

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Answered By David Elbeze, DVM, MRCVS

Veterinarian

Published on January 8th, 2018

You are referring to the shape of the building blocks of the stones, these are indeed their shape but these can only be seen under high magnification with the microscope. the actual stone that is seen on the xray contains hundreds of thousands of these building blocks and the shape is usually round it being urate, struvite or any other type of stone, the shape will not help diagnosing the type of stone i'm afraid.

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