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Updated on September 23rd, 2025
Pet's info: Dog | Mixed Breed Large (61lb +) | Male | neutered | 5 years and 7 months old | 95 lbs
Hello I have a lab mix who in past year or so began developing soft knots under his skin at the top of his back right leg. At first they didn't seem to bother him but over time I've noticed he puts less and less weight on the leg and limps when walking around the house or first stands. He can still run and play but is skiddish when it comes to the back right leg. Sometimes it will begin trembling and he immediately takes all weight off of it. Any ideas as to what is causing this or the severity?
1 Answer

Answered By Rebecca, DVM
Veterinarian
Published on December 4th, 2017