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My dog has dry, crusty scabs. What could be causing his skin issues?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed Large (61lb +) | Male | neutered | 9 years and 7 months old | 95 lbs

My chocolate lab has white dry crusty scabs on his back and other spots too. He is nine years old and eats a raw food diet, is on thyroid medication and wears a series to collar for flea prevention.

1 Answer

Most Helpful Answer

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Answered By Jenna Beyer, DVM, MBA, cVMA

Veterinarian, Certified Veterinary Acupuncturist

Published on October 14th, 2017

I would recommend that Gunnar get checked out by a vet. His skin issues could be caused by dandruff, missing nutrients in his diet, another endocrine disorder like Cushing's disease, low thyroid (meaning he may need an increase in his medication), mites, allergies, or infection. A vet can examine his skin and may take a skin scraping or sample to look at under a microscope to see if there are mites, bacteria, yeast, or other parasites. Once the vet has a better idea as to the cause, they can discuss a treatment protocol.

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