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Why is my dog's hair falling out in a patch, but skin is okay?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed Small (up to 22lb) | Female | spayed | 10 years and 10 months old | 23 lbs

My dogs hair is peeling off in a 1 inch size patch. The skin underneath is still there, so it is not an open wound. What could it be? I thought mange maybe?

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1 Answer

Most Helpful Answer

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Answered By Ricardo Fernandez, DVM

Veterinarian, Veterinary Oncology Resident

Published on November 26th, 2017

Thanks for using Petco Pet Education Center, formerly Petcoach! Yes, mange is possible. Other possibilities include allergies, ringworm, immune-mediated conditions, among many other possibilities. I recommend that you have her evaluated by your veterinarian for further assessment and treatment. In the meantime, if she appears to be scratching or licking at it, you can use an e-collar to try to prevent further injury. Good luck!

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