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Senile senior cat or other reason
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An_250578 posted:
My cat is 15 years old. Her companion cat died about two years ago. Just recently my cat started using the litter box by sticking her head in the covered box and pooping outside it. I don't know if this is senile behavior but it sure seems strange.. I change the box every other day and have done the same for years. She gets into the box to urinate. Any ideas on what might be the cause of this behavior change?
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AMERICAN VETERINARY MEDICAL ASSOCIATION
Drew Weigner, DVM, ABVP responded:
There are several possibilities: she may be having difficulty defecating, she may have a urinary tract infection, it's possible she has arthritis, etc. It doesn't seem logical that she will go in the litterbox to urinate but not defecate, but cats are like that! It's a good idea to have your veterinarian examine her and perhaps run lab tests to see if there's a medical cause. If not, try using a softer litter (like corn or paper based) to see if that's more comfortable for her.

Drew Weigner, DVM, ABVP
The Cat Doctor
Board Certified in Feline Practice