Why do Cats Urinate Outside of the Litter Box?

 |  Sep 9th 2008  |   3 Contributions

I have a 3-year-old cat that is currently taking
antibiotics (liquid Clavamox) for a bladder infection. She has
been taking the medicine for the past 4-days.
Today I saw her pee again outside of her crate
(which is the the reason I took her to the vet in
the first place to discover she has a UTI).

She has only had one other UTI and was treated a
year ago with Clavamox and healed quickly and
without incident.

Do you think she is allergic to the medicine?
Might the UTI be a symptom of a more serious

Thank you for time.

Tucson, AZ

My big question is whether your cat's urine was tested to confirm the presence of a bladder infection (also known as UTI, or urinary tract infection) before the antibiotics were started.

Many different syndromes can cause cats to urinate outside of the litter box. Bladder infections are definitely the most common. However, chemical imbalances in the urine can lead to irritation of the urinary tract and subsequent house soiling. Bladder stones may cause similar symptoms. And finally, some cats will urinate outside of the box due to stress or behavioral disorders.

It could be that today's incident was an isolated one. However, if the problem persists, the next step will be to obtain a urine sample for testing. X-rays and ultrasound may be necessary as well.

Cats certainly can have adverse reactions to Clavamox. However, the most common reaction is upset stomach (appetite loss, diarrhea, or vomiting). I doubt that the medication played any role in the incident that occurred today.


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