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Why is my 2-week-old puppy sick with diarrhea, yellow poop, bloated stomach?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed | Male | unneutered | 15 days old

The mother of my newborn puppy just died yesterday because of a virus quoted by the vet who treated her, the newborn puppy which is two weeks old by now has a diarrhea, its poop is color yellow and it has a bloated stomach. What shall I do? Help!

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1 Answer

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Answered By Laura Johnson VMD

Veterinarian

Published on April 4th, 2018

Hi, thanks for using Petco Pet Education Center, formerly Petcoach! Poor Sherlock! I am so sorry for the loss of your dog. I am assuming little Sherlock is being bottle fed puppy formula. Puppy formula can be very hard on puppies either causing diarrhea or constipation. I would try a different brand or mix 2 different brands together to off set each other. The other possibility is that if his mother died of a virus he could also have it. If he stops nursing you should immediately take him to your Vet for them to continue supportive care and/or possibly teach you how to tube feed. You can also start deworming Sherlock at 2 weeks and repeat dewormings every 2 weeks. Parasites can cause loose stool. I recommend putting a call in your Vet since they evaluated his mother. I hope this helps and I wish little Sherlock the best!

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