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Is a cat's urine specific gravity of 1.018 always kidney disease?

Updated On September 23rd, 2025

Pet's info: Cat | Mixed Breed | Male | neutered | 2 years and 7 months old | 11.4 lbs

Can a cats urine specific gravity of 1.018 be caused by anything other than kidney disease?

1 Answer

Most Helpful Answer

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

Veterinarian

Published on November 29th, 2016

That would depend on the hydration status of Woody and the blood values BUN and CREA (that are essentially elevated in kidney failure). If BUN and UREA are normal and USG is 1.018 means that kidneys are working absolutely normally. Hope that makes sense, if not please post another question on the forum or request a consultation with us.

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