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My 2-month-old puppy's stomach feels tight and heavy. What's wrong?

Updated On September 23rd, 2025

Pet's info: Dog | Shih Tzu | Male | unneutered | 2 months and 25 days old | 3 lbs

Hi. My name is Emily Morton and my dog is 2 months old. He's stomach feels very tight but he also feels heavy so at first I thought it may be that he was gaining weight. He's very playful and doesn't act like he's in pain but his stomach just keeps getting tighter what could this be?

1 Answer

Most Helpful Answer

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Answered By Cara, DVM, cVMA

Veterinarian

Published on August 18th, 2017

It sounds like Diesel is doing well, but puppies with large bellies can often have intestinal parasites. They are very common in puppies. I would have him checked out by your vet for his puppy shots, and they will likely want to check a stool sample for parasites and potentially prescribe a dewormer.

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