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My cat vomited a worm. What kind is it and what should I do?

Updated on September 23rd, 2025

Pet's info: Cat | Mixed Breed | Male | neutered | 9 years and 10 months old | 12 lbs

My 10yr. old cat vomited a few times over several hours. The last time was mostly flem and this worm. I put it under a magnifier and took this picture with my phone. Could you please tell me what it could be? Thank you, Linda

3 Answers

Most Helpful Answer

Answered By Sara Farmer, DVM

Veterinarian

Published on April 15th, 2018

I’m going to guess that this is a roundworm. It can be difficult to identify adult worms but it is usually much easier to identify eggs in a stool sample. I would recommend seeing your veterinarian for a stool analysis and to get the appropriate deworming medication.

1Pet Parents found this answer helpful

Related Answers from Veterinarians

Answered By Dr. Davis
Veterinarian
Published on April 22nd, 2018
This looks like a roundworm. He probably coughed/vomited it up. They are intestinal parasites that many animals have, younger ones in particular. Having your veterinarian run a fecal sample will confirm if he has roundworms and also check for other intestinal parasites. You can purchase roundworm dewormer at PetCo. Thanks for using Petco Pet Education Center, formerly Petcoach to help you care for Al.
1Pet Parents found this answer helpful
Answered By Angel Alvarado, LVT
Licensed Veterinary Technician
Published on July 12th, 2018
Cats may occasionally vomit up roundworms, but they look more like spaghetti. Submit the 'worms' and a stool sample to your veterinarian to diagnose intestinal parasites. Your vet can then dispense or administer an appropriate dewormer. The treatment may have to be repeated in 2-3 weeks.
1Pet Parents found this answer helpful

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