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My cat has diarrhea but is eating and acting normal. What to do?

Updated On September 23rd, 2025

Pet's info: Cat | Maine Coon | Female | 8 years and 8 months old

My cat has diarrhoea. She is 9 year old Maincoon. She has very runny diarrhoea 3 times. Yesterday morning last night and this morning. She is still eating her biscuits and drinking her water. I took her off the wet food to see if this would help and I'm keeping her in to monitor her. She is desperate to go out and really wants her wet food. Apart from the diarrhoea she seems normal. We did find a dead mouse on the doorstep on Monday just gone but we got rid of that. please advise me?

1 Answer

Most Helpful Answer

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Answered By Dr. Strydom, DVM

Veterinarian

Published on September 15th, 2017

I suggest you start with trying a probiotic since she seems to be otherwise acting normally. I strongly suggest you get Fortiflora as it is by far the best probiotic in my opinion. It is a powder that you put on the food daily. It is very palatable and most cats eat it readily. You may, however, want to mix it in just a touch of the canned food since she really likes that to make sure she eats all the probiotic. I would feed the probiotic for at least 14 days even if the diarrhea clears up in a few days. If no improvement after about a week I would say you should get her to your vet for an exam and fecal test. Since she goes outside she could have picked up something like giardia, coccidia, roundworms, hookworms, etc. https://www.viovet.co.uk/PURINA_Fortiflora_Feline/c10424/ If you can't find Fortiflora you can try a different probiotic but it must be made for animals, not humans. Hope this helps. Best wishes!

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