My new kitten is vomiting white foam, has diarrhea, and is lethargic.
Updated On September 23rd, 2025
Pet's info: Cat | Domestic Shorthair | Male | neutered | 3 months and 15 days old | 2.3 lbs
Hi, I recently adopted my 10 week old kitten about a week ago and took him to the vet a couple days ago to get home checked out. They did a feces test and told me everything looked good and he had no parasites. They also gave him a dewormer. Although, yesterday morning i saw him puke white foam and since then he’s had diarrhea, has had a lack of appetite and is lethargic. What’s wrong with him?
3 Answers
Most Helpful Answer
Published on December 16th, 2017
It's likely an infection that is causing this. Kittens commonly get gastrointestinal infections at this age and he may have picked it up from the place where he was adopted (incubation periods can be up to two weeks). The fact that he recently got dewormed is coincidental, but I wouldn't be concerned about this being related to the deworming medication. Considering he is lethargic and has vomiting/diarrhea, it's best to have him seen by a vet again. Kittens can quickly become dehydrated with this condition and will likely need some treatment to make him feel better again. For now, it's best to feed a bland diet of boiled chicken. Feed only a little at a time and ensure he has plenty of water available. It will also be helpful to add pedialyte to the water. I hope that helps and Ringo gets better soon.
1Pet Parents found this answer helpful
Related Answers from Veterinarians
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Published on August 5th, 2017
Chester likely has some sort of irritation to his stomach and intestines. These can be temporary, but they can get dehydrated quickly. There are many causes for vomiting and diarrhea including poison ingestion and infection. I doubt this has to do with the surgery, but may have something to do with the deworming. Deworming medication is usually quite safe, but make sure you gave the correct medication (Is it for a cat and age appropriate?). If he is still vomiting and having diarrhea tomorrow morning, then it is best to take him to the vet, so they can help identify the cause and make him feel better.
1Pet Parents found this answer helpful
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Published on December 12th, 2017
Poor Coffee. You can try feeding him a small amount of plain boiled chicken (no bones) to help settle his tummy. If he is continuing to vomit and have diarrhea, I would have your vet take another look at him. Your vet will be able to assess his hydration and give fluids if needed. They will also be able to start him on some meds to help him feel better. These little kittens get dehydrated really quick so watch him closely. I hope this helps!
1Pet Parents found this answer helpful
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