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Why is my dog straining to poop and has back pain after shots?

Updated on September 23, 2025

Pet's info: Dog | Mixed Breed Small (up to 22lb) | Female | 5 years and 1 month old | 12 lbs

So my dog had a vet appointment on Wednesday for a annual check up and shots. Since then she has had little harder time pooping then normal, she’s pushing a lot and at first the poop was firm but now it’s seems like a normal consistency. The part I’m worried about it’s when I got home yesterday and I was greeting her and giving her pets on her lower back she kind of yipped. She has been a little hesitant to walk up stairs and jump up on furniture. Can a dog strain a muscle from pooping?

1 Answer

Most Helpful Answer

Ana M, DVM

Answered By Ana M, DVM

Veterinarian

Published on December 16, 2018

Thank you for submitting your question regarding Jezz. She could be tender from her vaccine injection site depending on where the shots were given. I would contact her veterinarian today to see of this is a possibility. Otherwise there could be another problem such as lower back pain. This is common in small breed dogs. It is unlikely related to her straining to defecate. I would ask her veterinarian today. I hope this information helps!
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