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Updated on September 23rd, 2025
Pet's info: Dog | Mixed Breed | Male | unneutered
I gave my dog his first deworming dose last night, and he has not pooped at all today, which is not normal for him. Should I be worried?
5 Answers

Answered By Destini R. Holloway, DVM
Veterinarian
Published on June 2nd, 2016
Answered By Jennifer Summerfield, DVM CPDT-KA
Veterinarian, Certified Dog Trainer
Published on November 22nd, 2016
As long as he's acting normal otherwise and isn't straining to poop, I wouldn't worry that he hasn't gone since this morning - he will poop when he's ready :) Deworming can sometimes throw a puppy's normal potty schedule off a little, but this is normal. You will need to repeat the dewormer in 14 days to ensure that all life stages of the worms are killed.
1Pet Parents found this answer helpful
Answered By David Elbeze, DVM, MRCVS
Veterinarian
Published on October 31st, 2017
Stool comsistancy can vary at this age and even more right after deworming. if this is the only symptom with Cody just keep an eye on his stools in the next few days to make sure it doesn't turn into severe diarrhea.
1Pet Parents found this answer helpful
Answered By Dr. Melanie, BVSc MS
Veterinarian
Published on November 5th, 2016
You are correct that it could have happened due to him being dewormed recently, as that can cause diarrhea. Walker is also young, and his bowel control isn't fully developed at this age. He may need to let out once a night to go potty, so I would recommend getting up once in the night to let him out to prevent him from pooping in his crate again.
1Pet Parents found this answer helpful
Answered By Jeffrey Milner
Veterinarian
Published on April 4th, 2018
It really depends on how many meals she has missed entirely, or if she will take other foods besides her regular stuff if offered. The deworming medicine can upset some animal's GI tract and make them not want to eat. If she hasn't eaten in 24 hours, because she is so small and capable of becoming quickly hypoglycemic, I would recommend taking her in to the vet to be assessed for potential causes of anorexia. If it has only been 8-12 hours, I wouldn't worry just yet. Hope this helps.
1Pet Parents found this answer helpful