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My cat has watery diarrhea and is throwing up. When to see a vet?

Updated On September 23rd, 2025

Pet's info: Cat | Domestic Mediumhair | Female | unspayed | 1 year and 9 months old

Hi my almost 2 year old female cat has watery diharea and is throwing up a mucus flemmy yellowery sick

4 Answers

Most Helpful Answer

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Answered By Dr. Melanie, BVSc MS

Veterinarian

Published on August 26th, 2017

Oh no, poor Toffee! She sounds quite sick at the moment, and her vomiting and diarrhea could be caused by a GI illness, eating something rotten or toxic, a foreign body, or pancreatitis. I see that she isn't spayed, and her symptoms could also be caused a pyometra, which is a life threatening infection of the uterus. When a cat is having both diarrhea and vomiting, it's time to see a vet immediately to prevent her from getting severely dehydrated and sicker. She does need veterinary attention now, please take her into an ER vet clinic; if there isn't one in your area, there will be a vet on call for emergencies. The information to reach that vet is found on a clinic's answering machine or website.

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    Answered By Ricardo Fernandez, DVM

    Veterinarian, Veterinary Oncology Resident

    Published on

    Hi there! Thanks for using Petco Pet Education Center, formerly Petcoach. Toffee could be having diarrhea from things like dietary indiscretion, intestinal worms, inflammatory bowel disease, among many others. I recommend you have her evaluated by your veterinarian so that this can be further assessed. Treatment would be based on the findings. At the very least, they can start Toffee on a medication for diarrhea. Good luck!

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    Answered By Dr. Melanie, BVSc MS

    Veterinarian

    Published on April 18th, 2017

    Oh no, poor Josey! The excessive drooling is likely due to nausea, which is likely due to the fact he's been vomiting. He could have a severe GI illness, may have eaten something rotten, could have a foreign body, or could have pancreatitis. You can try a home remedy to see if it helps before having to take him into the vet. I recommend withholding food for 12-24 hours, then feeding a bland diet of boiled white meat chicken (no bones) in small amounts several times a day for a couple of days. Then slowly add back in his normal diet. If the vomiting continues in the absence of food, he vomits the bland diet, the diarrhea continues, stops drinking water, starts vomiting water, or becomes very lethargic, he will need to see a vet right away.

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    Answered By David Elbeze, DVM, MRCVS

    Veterinarian

    Published on August 13th, 2017

    She might have eaten something spoiled that is causing this. withhold food for 8 hours then offer Molly boiled boneless chicken and rice every 6 hours in small portions. if she is eating and not vomiting, continue with this diet for 2 days. After 2 days, you can put her back gradually on her normal food. If she continues vomiting or is not eating, take her to the vet to get treatment.

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