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My outdoor cat is sick with recurring diarrhea. What should I do?

Updated on September 23rd, 2025

Pet's info: Cat | British Shorthair | Male | unneutered

My cat keeps getting diarrhoea every few months since I have let him out. He is poorly at the moment should I keep him in

1 Answer

Most Helpful Answer

Dr. Macartney, BVet Med, MRCVS

Answered By Dr. Macartney, BVet Med, MRCVS

Veterinarian

Published on September 3rd, 2017

Routine bouts of diarrhoea are caused in most cases by one of the following;

Gastrointestinal parasites such as worms
Food allergies

In rare cases IBD or gastrointestinal tumours can be to blame. This is more likely in older cats.

I would start by deworming Doughnut. If you have done this in the last 12 weeks or the diarrhoea returns in a few weeks please post another question and we can try the next step.

In the meantime at home;
Rest his gastrointestinal tract for a few hours
Provide a bland diet of boiled boneless chicken breast
Reserve stock from the boiled chicken breast for rehydration
Vote Icon1Pet Parents found this answer helpful

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