Petco Text Logo
Petco Pet Logo
  • Two Easy Ways to Start Earning Rewards!

    rewards header
    Become a member today!
    Members-only pricing and offers, personalized care notifications, Vital Care points back on every purchase and more!
    Petco Pay LogoBecome a credit card member today!

    Earn 2X Pals Rewards points at Petco
    when you use Petco Pay!

    APPLY NOW
    Learn More About Petco Pay Benefits

Why is my dog limping with a painful, jiggling lump on his leg?

Updated on September 23rd, 2025

Pet's info: Dog | American Pit Bull Terrier | Male | unneutered | 50 lbs

What is this? I've tried looking it up but I've seen nothing. Its like a swollen knot on the back of his left leg. It jiggles when he walks, and even when he just breathes. He limps a little, but not alot. And when we try to touch it, he'll cry out. We just barely noticed it so we don't know how it could have happened whatever it is.

1 Answer

Most Helpful Answer

Dr. Melanie, BVSc MS

Answered By Dr. Melanie, BVSc MS

Veterinarian

Published on July 17th, 2019

Poor Chapo. It's obviously painful to him if he is limping. It could be a growth or fluid in his joint from an injury. He needs to see a vet for this problem, and I would take him into one first thing in the morning.
Vote Icon1Pet Parents found this answer helpful

Smart Picks for Smart Questions

Have A Vet Question?

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

Share

Styled arrow button