Petco Text Logo
Petco Pet Logo

My cat pooped a string after deworming. Could it be a tapeworm?

Updated On September 23rd, 2025

Pet's info: Cat | Domestic Shorthair | Female | unspayed | 6 lbs

My cat dusty went to vet about three weeks ago and got diagnosed with hookworms and lung flukes. We gave her a 10-day dose of a dewormer. Now, about a week after stopping the dewormer, she pooped out about a foot-long beige string-like thing. She wasn't diagnosed with tapeworms but it looked like one. Could it have been and they didn't notice at the vet? Does the dewormer take care of that?

1 Answer

Most Helpful Answer

Image profile

Answered By Jennifer Summerfield, DVM CPDT-KA

Veterinarian, Certified Dog Trainer

Published on October 13th, 2018

Hi there. Yes, it certainly possible that she may have had tapeworms that weren't found on her fecal exam at the vet's office. It's actually quite rare to find tapeworm eggs on a fecal - they're usually diagnosed by seeing the tapeworm segments in the pet's stool or on their fur near the rectum, which only happens if you're lucky enough to see it at the right time. Some dewormers treat tapeworms, but not all. If the dewormer contains praziquantel, then yes - it treats tapeworms. If not, it may or may not be effective. In that case, I would call your veterinarian and let them know what you're seeing, so that they can prescribe a dewormer specifically for tapeworms if needed.

Vote icon

1Pet Parents found this answer helpful

image
Have A Vet Question?

Book an appointment with the pros – our expert vets are here to help.

Sponsored