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My dog drinks and urinates excessively. Is it Cushing's or kidneys?

Updated On September 23rd, 2025

Pet's info: Dog | Basset Hound | Female | spayed | 8 years and 1 month old | 86 lbs

My dog 8yr old spayed female basset, retiered breeder. Is obsessively drinking water, and increased urination. Vet diagnosed Cushing but no medications. Could kidneys be failing? Or is it like an OCD type situation?

2 Answers

Most Helpful Answer

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Answered By Mariya Gugel, DVM

Veterinarian

Published on November 21st, 2017

Thank you for using Petco Pet Education Center, formerly Petcoach! There are many conditions that could cause Mollie to drink more. Cushing's disease is definitely one of them, and dogs of Mollie's age are typically affected more frequently than younger dogs. Your vet can run some additional tests to determine exactly what type of Cushing's Mollie has, as there are two different types and each of these requires a different treatment. There are also other conditions that may cause Mollie to drink more including diabetes or an infection, or it can definitely be behavioral. It is important to treat any underlying causes before saying that her increased drinking is due to behavioral issues. I hope this helps!

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    Answered By Amy S. Eutsey, DVM

    Veterinarian

    Published on June 18th, 2018

    Hello. I’m sorry you are so worried about Miss. I hope your veterinarian visit can give you some answers. It is true that the most common ailments that we want to rule out first for an older dog with excessive drinking and urinating would be Diabetes and kidney disease. There is also an endocrine disorder known as Cushing’s Disease. Typically the initial signs of diabetes and kidney insufficiency are just the drinking and urinating larger volumes. As those diseases progress, then you start to see other symptoms such as weight loss, changes in appetite, maybe vomiting. With Cushing’s, it is also drinking and urinating large amounts, sometimes accompanied by a pot bellied appearance, skin problems . Sometimes there is nothing wrong with dogs that drink more and urinate more than usual. Your vet will examine her and probably recommend blood work and a urinalysis to get started. I hope your visit to the veterinarian tomorrow gives you the answers you are looking for. Thank you for using Petco Pet Education Center, formerly Petcoach

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