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Why Does My Dog Have a Bump on His Elbow?


Why Does My Dog Have a Bump on His Elbow?

Say you’re petting your dog and you notice a bump on the elbow that wasn’t there before and you’re wondering, “What is this thing and why is it here?” “Why does my dog have a bump on his elbow?” Well, there can be a lot of different reasons – here the 6 most common reasons.  

  1. One of the most common is a callus. A callus is an area of thickened, hardened skin that can form on the elbow if a dog is laying down on hard surfaces repeatedly.

    PS: The
    Big Dog Mom has a great guide on how to treat calluses at home!

  2. It could also be something called a hygroma, which forms when a dog lays down on hard surfaces repeatedly, and the trauma to the tissues on this bony prominence cause fluid to build up under the skin.

  3. It could also be due to joint effusion from an inflammatory condition inside the joint such as osteoarthritis. Osteoarthritis can actually make elbows swell up.
  4. In more rare instances, another cause for bumps on the elbows could be a tumor. It could be cancer or it could be a tumor that is non-cancerous. There’s lots of different tumors that are non-cancerous.

  5. It could also be an insect bite or sting causing a bump on the elbow.

  6. A bony malformation is another potential cause, maybe there’s something weird with the elbow bone and you’re feeling a bump there.

What to Do When You Find a Bump on Your Dog’s Elbow

The bottom line is, if you’re wondering why your dog has a bump on their elbow, you need to take your dog in to see the veterinarian, and that veterinarian will help you actually determine what that bump is and what, if anything, you need to do about it.

Check out Dr. Sarah’s Definitive Guide to Hygromas to learn more!

Dr. Sarah Wooten

A lifelong dog lover, Dr. Wooten is a Doctor of Veterinary Medicine with 16 years experience in small animal general practice.

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