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My senior cat is losing weight with hyperthyroid signs. What to do?

Updated On September 23rd, 2025

My 19 yr. old Russian Blue cat is not eating, has lost weight and is now down to 7 lbs. (she was 9 a year ago) and the vet suspected hyper-thyroid then. She's just very listless, has changed where she sleeps, and is urinating in our bedroom, in the same corner daily, so her habits have changed. I know she needs lad tests but anything I can do for her til then?

1 Answer

Most Helpful Answer

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Answered By Vanessa Yeager DVM MPH

Veterinarian

Published on October 16th, 2017

Hi and thanks for posting on Petco Pet Education Center, formerly Petcoach! I am sorry to hear your cat is not feeling very well. Hyperthyroidism is very common in cats and needs to be confirmed with a blood test that measures Total Thyroid hormone. Try and make her as comfortable as possible-offer a tasty wet food she may enjoy. Boiled chicken and rice also works well for cats that aren't feeling well. Fresh water from a pet fountain can encourage her to drink more water. Feliway pheromone spray can help ease tension. I hope you are able to take her to her vet for bloodwork soon so she can get on some thyroid medication if warranted. I hope she feels better soon!

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