Petco Text Logo
Petco Pet Logo

Why is my energetic dog shaking with leg pain & muscle spasms?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed Small (up to 22lb) | Male | unneutered | 3 years and 7 months old | 21 lbs

My dog seems to have hurt his hind leg. He has muscle spasms and lots of shaking. He's usually very energetic.

1 Answer

Most Helpful Answer

Image profile

Answered By Dr. Melanie, BVSc MS

Veterinarian

Published on January 11th, 2017

Poor Marley! It sounds like he has really hurt his leg if he's having muscle spasms and lots of shaking. He could have torn a ligament, strained a muscle, or possibly broken a bone. I would rest him tonight, keep him as quiet as possible. No running, jumping, or playing. Take him out to toilet on a lead only and bring him right back in when he's done. In the morning, if he's still having muscle spasms and lots of shaking, I would take him into the vet for a lameness exam and possibly x-rays. The vet can diagnose what is causing his symptoms, and can treat him for it. He may also benefit from pain meds from the vet. Please do not give Marley any human pain meds, as many are toxic to dogs and are fatal if given.

Vote icon

1Pet Parents found this answer helpful

image
Have A Vet Question?

Book an appointment with the pros – our expert vets are here to help.

Sponsored