08/19/2026
Think your senior cat is healthy? Think again…
First of all, “senior” in cats refers to cats aged >12 years old. A study just completed at The University of Wisconsin-Madison College of Veterinary Medicine (Herrera K, JAVMA 2026) involving 129 cats and running from 2022-2024 found some interesting conclusions about senior cats’ health. The study was based on cats that were reported to be in good health by their owners and were evaluated via owner questionnaires, veterinary examinations and diagnostic testing.
Get ready for some startling results!
All 129 cats (100%) had dental disease and 77.8% (63 out of 81) had orthopedic disease. In fact, a former study found evidence of joint disease in senior cats with no former report of any symptoms. When diagnostic tests such as urinalysis, complete blood count, blood pressure, and serum chemistries were run, chronic kidney disease (61.3 %, 49 out of 80), hypertension (54 out of 56, 96.4%), and hyperthyroidism (64.7%, 11 of 17) were diagnosed yet owners reported no symptoms in their felines. Increased urination can be associated with kidney disease yet 75.6% of cats had no owner-reported changes in observation of any increased use of the litter box (or outside the litter box).
A few reasons can explain why cats go undiagnosed with the above problems—
1. Cats are good at hiding when they don’t feel well and owners fail to notice symptoms.
2. It is a fact that cats are presented for veterinary care less frequently than dogs for various reasons such as transport issues, unable to find the cat the day of the appointment (has happened to all of us!), financial constraints, etc.
Changes in activity level, vocalizing more than normal, urinating or defecating outside the litter box, changes in appetite, increased thirst, and weight loss despite eating well can all be clues to underlying disease such as kidney disease, osteoarthritis, diabetes, hyperthyroidism, dental disease, and cognitive dysfunction.
Cat life expectancy has increased in the United States in recent years due to better veterinary care, nutrition improvements, and owner education. But we still have a ways to go! To keep your senior cat healthy-be observant, note any changes to their regular routine, see your veterinarian twice/year for a physical examination and blood work. If caught early, many of the above diseases can be addressed and thereby keeping your senior cat feeling great during their “old age”!