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Why did my puppy poop a white worm after deworming medicine?

Updated On September 23rd, 2025

Pet's info: Dog | Labrador Retriever | Male | unneutered | 1 month and 13 days old | 9 lbs

I had given my 6 week old puppy Nemocid as a part of his deworming process. When he went poop in the evening before going to bed I noticed a noodle like white object along with his stool which I had never seen before. The white thing didn't seem to move or anything. Is it the dead worm result of the deworming medicine? Or is it a side effect? Should be worried?[Note: I've attached a picture of his stool, hope its alright]

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1 Answer

Most Helpful Answer

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Answered By Angela Hinton, DVM

Veterinarian

Published on May 19th, 2018

Hello there! I am so glad that you are keeping up with deworming in your puppy because that is so important for their health! From the picture that looks like it is probably a roundworm. It's possible it could also be a hookworm. This can be a normal occurrence after deworming. And I would recommend deworming again in 2 weeks. No need to be concerned. It's a good thing you gave Casper this medication. I hope this helps ease your mind. I wish you and Casper all the best!

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