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My 3-month-old puppy has a pot belly and is thin. What to do?

Updated on September 23rd, 2025

Pet's info: Dog | Mixed Breed Small (up to 22lb) | Female | 2 months and 27 days old | 11 lbs

My 3 month old dog's tummy is getting bigger, yet her body is thin. What can I do as a treatment?

1 Answer

Most Helpful Answer

Daniela Jessen, DVM

Answered By Daniela Jessen, DVM

Veterinarian

Published on January 5th, 2019

Hi,
Puppies can have what we call a "pot belly". In many puppies the pot belly appearance noticeable after a meal but it will decrease in size after a couple of hours. In cases where the pot belly persist in puppies and does not decrease in size we consider the most common cause is heavy worm infestation which will require to have your puppy to have a series of de-worming treatment at 2 weeks intervals at least twice (with heavy infestation I will recommend more than twice). Other cause of distended abdomen is fluid built up (ascites) which warrant a veterinary investigation.
I would suggest to start immediately with treatment using a de-wormer recommended by your vet. Good Luck
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