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My 14-week-old puppy died suddenly. What could be the cause?

Updated On September 23rd, 2025

Pet's info: Dog | American Bully | Female | 3 months and 27 days old | 15 lbs

You My 14 week old puppy died suddenly last night. I am just trying to look for some answers as to why. She was completely fine all day. Ate, drank, played. That afternoon she drank a lot of water. She seemed very full but again. Nothing unusual. She napped on the couch with our other pups and she woke up and had to go to the bathroom so we let her out. She ran around the house and back. Ate a couple of left over pebble if food that were left on the cement from her earlier feeding and then she l

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1 Answer

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Answered By Dr. Elizabeth

Veterinarian

Published on January 10th, 2020

I'm sorry to hear about the passing of Penelope. Unfortunately, without an necropsy (autopsy), there is no way to know for sure what happened. A few things that can happen could include a bad heart, an outpouching of a large blood vessel that ruptures internally or an aneurysm. Try to focus on the positive memories you made with her. It's so hard to lose them. My condolences.

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