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My cat vomits and has diarrhea. Why is my other cat attacking?

Updated On September 23rd, 2025

Pet's info: Cat | Cornish Rex | Female | spayed | 3 lbs

Female cat vomits often and lately sprays diarrhea outside the litter box and or older male cat attacks her often

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Answered By Jessica Desrosiers

Veterinary Technician

Published on June 10th, 2017

If Lulubelle is vomiting and having a lot of diarrhea it is a very worrisome sign. Vomiting and diarrhea can be a sign of illness such as internal parasites, GI upset, pancreatitis, bowel diseases, illness, allergies and more, and if it has been prolonged that is a sign that something is wrong. Sometimes, cats may become aggressive or be attacked if they are ill, and your male cat may sense that. Bringing your cat into the vet ASAP for a complete exam is best to figure out the underlying problem.

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