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Why is my dog losing hair on its leg with a raised spot and bumps?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed Large (61lb +) | Female | 66 lbs

Hair loss smaller than a dime on upper front leg with white spot and reddish bumps. Slightly raised. What could this be?

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1 Answer

Most Helpful Answer

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Answered By Jessica Keay, DVM

Veterinarian

Published on July 15th, 2017

It is very difficult to tell without seeing a dog in person what a skin lesion could be. Based on what we see here, we could have a small area of bacterial infection on the skin, we could have ringworm (a fungal infection), or if it is raised/nodular feeling we could have a tumor of the skin. I would recommend a visit to your vet for a closer look. They may recommend a fungal culture to test for ringworm, a skin cytology to look for bacterial growth, or a needle aspirate if they feel it could be a tumor. In the meantime, just in case this could be ringworm (which can be passed to people and other animals) it is best to wash your hands after touching this area of your dog.

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