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Why does my puppy have muscle spasms in his hind leg? What can I do?

Updated On September 23rd, 2025

Pet's info: Dog | Yorkshire Terrier | Male | unneutered | 2 months and 27 days old | 4.2 lbs

My puppy as muscle spasms in his left hind leg is there anything I can do and what causing it

1 Answer

Most Helpful Answer

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Answered By Ann Dion, DVM

Veterinarian

Published on July 17th, 2018

Hello and welcome to Petco Pet Education Center, formerly Petcoach. Spasms can be caused by many different things. Firstly, sometimes puppies will twitch in their sleep, and this is dreaming. If the muscle spasm is only in the left leg and continuous, it would be more concerning for pain in that leg. If that is the case I would have it checked by your vet to see if there is a luxating patella or soft tissue injury that is causing pain. Other causes of muscle spasms include toxins, neurological diseases/disorders, and metabolic conditions. If the spasms are very mild and intermittent then it might be behavioural, but if it is continous or severe, then I would have Coco seen by a vet right away. Best of luck with Coco.

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