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Why is my unspayed cat vomiting white foam and peeing inside?

Updated On September 23rd, 2025

Pet's info: Cat | Khaomanee | Female | unspayed | 4 years old

Hi there, My cat has been vomiting white foam/liquid for a day and a half. Just twice a day. Today for the very first time she peed in the house. She is also unspayed and got off heat 2 days ago.

2 Answers

Most Helpful Answer

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Answered By Dr. Massimo Orioles, DVM, Cert AVP, MRCVS

Veterinarian

Published on January 24th, 2019

Hi, and thanks for your question. As a first approach, I would suggest to withhold food for the next 8-12 hours and then start feeding with a bland diet based on boiled chicken/white fish and rice in small portion every 6 hours for the following 48hours. Then gradually reintroduce the normal diet over 5 days. I would definitively recommend a veterinary check up if the signs persist or you notice diarrhoea, more vomiting, lethargy or inappetence. Hope this answer was helpful, but please do not hesitate to contact us again on the forum or by requesting a consultation if you have any more questions or to discuss it any further. If this answer was helpful please let us know, this will be used to improve our service!

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    Answered By Dr. Melanie, BVSc MS

    Veterinarian

    Published on April 13th, 2019

    It is concerning Snow is vomiting. I can give you a home remedy to see if that helps. I recommend withholding food for 12-24 hours, then feed 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 her normal diet. If the vomiting continues in the absence of food, she vomits the bland diet, develops diarrhea, stops drinking water, starts vomiting water, or becomes very lethargic, she will need to see a vet right away. Best of luck.

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