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My puppy has watery stool and worms. Is it safe to deworm him?

Updated On September 23rd, 2025

Pet's info: Dog | Chihuahua | Male | unneutered | 2 months and 10 days old | 4.2 lbs

can I deworm a puppy who has watery stools? I just got a new puppy and he has a lot of worms in his stool, but his stool is still a bit watery so I am not sure if it is advisable to deworm him just yet.

2 Answers

Most Helpful Answer

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Answered By Dr. Melanie, BVSc MS

Veterinarian

Published on March 10th, 2018

Yes, it is fine to deworm Momo. If he has a lot of worms in his stool, that may be the likely cause of the watery stool. I would give him a deworming treatment now and another in two weeks to kill all the worms. After that, he should be dewormed monthly until six month of age, and should then be dewormed every three months thereafter. I hope this helps, and congrats on the new puppy!

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7Pet Parents found this answer helpful

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    Answered By Christie Long, DVM

    Veterinarian, Certified Veterinary Acupuncturist

    Published on

    You can deworm him, as Dr. Melanie suggested below, however be aware that there are many causes of diarrhea in puppies, and if Momo's stool isn't normal 1 - 2 days after the deworming treatment, you'll need to seek veterinary care for him, as he is very young and can easily become dehydrated with continued fluid loss. As you are in the San Diego area, you should be aware that we are now offering veterinary housecalls. Visit https://www.petcoach.co/house-call-veterinarians/ or email housecalls@petcoach.co for more information.

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    4Pet Parents found this answer helpful

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