Petco Text Logo
Petco Pet Logo

My small dog is suddenly walking on three legs. What's wrong?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed Small (up to 22lb) | Male | 2 years and 5 months old | 7 lbs

I'm looking after my friends Pomeranian poodle. Many times he has been walking around and limped but was fine 5 minutes later, however this time he's only walking on 3 legs. I haven't seen this before, is there anything I can do? I've tried touching his leg but there isn't any reaction.

1 Answer

Most Helpful Answer

Image profile

Answered By Dr. Melanie, BVSc MS

Veterinarian

Published on December 15th, 2016

In small breed dogs, there is a common condition called a luxating patella. This is when the kneecap comes out of it's correct anatomical position, causing the limping, and once it slips back into place, the limping stops. That is likely what is causing Max's intermittent lameness. He should see a vet for it when his owners come back, but if he does keep on walking on three legs, he should see a vet sooner. That would mean the kneecap hasn't gone back into the correct position, and it will be painful for him. Please do not give him any human pain medications, as many are toxic to dogs and can be fatal if given. The vet can prescribe him a safe pain medication.

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