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My 10-week-old puppy has watery diarrhea. What should I do now?

Updated On September 23rd, 2025

Pet's info: Dog | Cavalier King Charles Spaniel | Male | unneutered | 2 months and 11 days old

My 10 week old puppy has really sunny Pooh

2 Answers

Most Helpful Answer

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Answered By Megan, DVM, CVA

Veterinarian

Published on December 8th, 2018

Do you mean really runny poop? If he has watery diarrhea, I would strongly recommend to have a vet look at him. Being so young and small, he could easily get dehydrated despite drinking water. Diarrhea can be from several things like parasites, a change in diet, viral infections like parvo, toxins and much more. You can try to feed him some plain boiled boneless skinless chicken and white rice to see if this settles his tummy. If he isn’t improving, I would have your vet take a look at him. I hope this helps and he starts to feel better!

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    Answered By Ricardo Fernandez, DVM

    Veterinarian, Veterinary Oncology Resident

    Published on September 6th, 2017

    Hi there! Thanks for using Petco Pet Education Center, formerly Petcoach! Sorry to hear that Rocky has not been feeling well. The clinical symptoms you describe could be associated with concerning diseases such as parvovirus or severe intestinal worms in puppies. For that reason, I recommend that you have Rocky evaluated by your veterinarian for further assessment and treatment. These diseases are easily tested and usually you will find out relatively quickly. At the very least, they can start medications for diarrhea and anorexia to make him feel better. In the meantime, keep water available at all times to try to prevent dehydration. Best of luck with your boy. Really hoping for a speedy recovery!

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