My cat is drinking and urinating a lot – could she have a kidney problem?


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Our question this week was:

I have a cat that is fully grown (6 years) but is still very "tiny". Everybody always make the comment that your cat is sooo tiny-which I am fine with and never thought twice about it. I had a family member watch the cat and she noticed that my cat drinks a TON of water and urinating 5 to 6 times a day. She feels that is may have something to do with her kidneys. She thinks that something may be wrong with her kidneys because she is soo small.

Ed Kempkes


Hi – thanks for your email Ed. You wrote that you have a petite cat that has been noted to drink and urinate more than what is possibly normal.

Someone suggested that she could have a kidney disease. That is a possibility. Drinking more and urinating more can be associated with kidney disease (and diabetes).

The medical term for drinking more is polydypsia and the term for urinating more is polyuria. I'd recommend reading this article called Polydipsia and Polyuria in Cats and taking her in to your vet for an examination and blood test to determine if either of these diseases are your cats problem.

A couple more articles that might be helpful to you are Diabetes in Cats and Chronic Renal (Kidney) Failure in Cats.

Best of luck!

Dr. Debra

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debra-primovic Dr. Debra Primovic

Debra A. Primovic, BSN, DVM, Editor-in-Chief, is a graduate of the Ohio State University School of Nursing and the OSU College of Veterinary Medicine. Following her veterinary medical training, Dr. Primovic practiced in general small animal practices as well as veterinary emergency practices. She was staff veterinarian at the Animal Emergency Clinic of St. Louis, Missouri, one of the busiest emergency/critical care practices in the United States as well as MedVet Columbus, winner of the AAHA Hospital of the year in 2014. She also spends time in general practice at the Granville Veterinary Clinic. Dr. Primovic divides her time among veterinary emergency and general practice, editing, writing, and updating articles for, and editing and indexing for veterinary publications. She loves both dogs and cats but has had extraordinary cats in her life, all of which have died over the past couple years. Special cats in her life were Kali, Sammy, Pepper and Beanie.