Petco Text Logo
Petco Pet Logo
  • Two Easy Ways to Start Earning Rewards!

    rewards header
    Become a member today!
    Members-only pricing and offers, personalized care notifications, Vital Care points back on every purchase and more!
    Petco Pay LogoBecome a credit card member today!

    Earn 2X Pals Rewards points at Petco
    when you use Petco Pay!

    APPLY NOW
    Learn More About Petco Pay Benefits

My puppy ate poop after deworming. Should I be concerned about worms?

Updated on September 23rd, 2025

Pet's info: Dog | Mixed Breed | Male | unneutered | 2 months and 16 days old

My puppy was d-wormed on Friday, and he ate some of his poop tonight. I haven't been seeing any worms in his stool. SHould I be concerned?

5 Answers

Most Helpful Answer

Dr. Leigh, DVM

Answered By Dr. Leigh, DVM

Veterinarian

Published on April 9th, 2016

Puppies are usually wormed more than once so you shouldn't be too concerned. At some point, he should have a fecal sample tested for worms to make sure he is all negative. He also should be started on a monthly heartworm prevention that treats intestinal parasites, too. Heartgard and Interceptor are two commonly used monthly preventions. Talk to your vet about the best program for your puppy.
Vote Icon5Pet Parents found this answer helpful

Related Answers from Veterinarians

  • Answered By Jennifer Ladd, DVM

    Veterinarian

    You won't see worms most of the time with hookworm, round worm and whip worm infections. Microscopic eggs are shed in the feces. When they are puppies they should be dewormed every 10-14 days- at least 2 rounds. I usually do 3: this ensures that even if reinfected they will not carry worms.

    Vote Icon

    3Pet Parents found this answer helpful

  • Answered By Dr. Strydom, DVM

    Veterinarian

    Published on January 17th, 2020

    Sometimes you don't see them. The dewormer is killing the adults and the eggs. He may have mostly eggs. When those come out you won't see them as they are microscopic. I just recommend you repeat the dewormer treatment in two weeks and then if you get him on a monthly heartworm prevention like Heartgard it has a dewormer in it as well so that will keep him healthy.

    Vote Icon

    1Pet Parents found this answer helpful

  • Answered By Laura Johnson VMD

    Veterinarian

    Published on May 13th, 2018

    Hi, thanks for using Petco Pet Education Center, formerly Petcoach!

    Interceptor Plus is heart worm medication that also gets intestinal parasites. It is given monthly year round to prevent heart worm. It is based on weight. So he will get another dose next month.

    It is likely that he got the dose since you are now seeing adult round worms pass in the stool. It likely means it is working. You can call your vet Monday and tell them you are worried he didn't get it and maybe they can prescribe some pyrantel (stongid) which is just for round worms (not for heart worm). You should be fine until then.

    I wish you the best!

    Vote Icon

    1Pet Parents found this answer helpful

  • Answered By David Darvishian

    Veterinarian

    Published on November 10th, 2017

    Hi and thanks for using Petco Pet Education Center, formerly Petcoach! Trixxi is very cute! Sounds like the dewormer is working properly. Sometimes dead worms pass and sometimes they get digested on the way out. It depends on where they are in the intestinal tract when they are killed by the dewormer. Yes, you are correct. Puppies need to be dewormed every 3 weeks at least 3-4 times depending on what age you start the dewormer and if they are taking heartworm prevention that has a dewormer in it. Most heartworm medicines have an intestinal dewormer in it, so once that is started, that can substitute for your puppy dewormings. I would advise that you get her seen by your veterinarian so her puppy vaccines stay updated and that she is monitored for good health. Also, your vet can discuss proper flea/tick and heartworm products. Good luck with Trixxi.

    Vote Icon

    1Pet Parents found this answer helpful

Smart Picks for Smart Questions

Have A Vet Question?

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

Share

Styled arrow button