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My senior dog has thick, itchy scabs on his back. What's wrong?

Updated on September 23rd, 2025

Pet's info: Dog | Labrador Retriever | Male | neutered | 10 years and 4 months old

My dog is a yellow lab (service dog) he is 10 years old. He has severe food allergies and over the last several months he has developed several thick scabs on his back. They have really started to bother him. Itching him badly. No bleeding or sores. Just thick scabs. What could these be??

1 Answer

Most Helpful Answer

Jessica Desrosiers

Answered By Jessica Desrosiers

Veterinary Technician

Published on November 1st, 2016

While it's possible for food sensitivities to change over time and cause skin issues, since Mariner is a senior pup it may be time for a senior wellness exam. Scabbing on the skin could be due to a number of things including the aforementioned food allergies, environmental allergens, skin infections, parasites and even metabolic changes. A complete examination of his coat plus some general bloodwork may alert you to the cause of his scabbing. In the meantime, an Elizabethan (cone) collar, if it doesn't interfere with his service work, or a T-shirt to protect the affected area, may help prevent him from scratching or chewing and give the area some time to heal. It will also keep Mariner from introducing more bacteria into the site which can lead to an infection.
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