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What causes dark, flaky, irritated skin on my dog's belly & back?

Updated On September 23rd, 2025

Pet's info: Dog | Yorkshire Terrier | Female | spayed

Hi, my dog is a nine year old Yorkshire Terrier, i’ve noticed before that she had patches of what looked like dirt on her belly but recently it seems it has spread. It isn’t dirt as it doesn’t come off when she’s been bathed. Most of the area of her lower belly near her genitals is covered in dark spotty patches and her skin is often flaky and seems red and irritated. She has bad skin on her back which is also flaky and seems scabby sometimes, could this be related? Any answers or advice?

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1 Answer

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Answered By Jessica Desrosiers

Veterinary Technician

Published on September 9th, 2021

It is very possible it is related. Unfortunately, skin issues can be a large number of things, which is why a vet visit in person is best. Your vet can take a sample of the flaky skin for testing if needed to check for issues like bacterial, fungal or yeast infections. Treating for parasites can also help reduce skin irritation if they are the cause. In older dogs, metabolic changes may also cause skin and coat changes. Finally, allergies to food or the environment can also cause skin symptoms like this, usually concentrated on the belly and back. A food trial with your vet to rule out ingredients that could be causing it, as well as starting on a medicated shampoo or oral antihistamine may help. Until you can get to your vet, keeping the area clean and dry, and keeping Jojo from licking or chewing at it can help reduce irritation and secondary infection.

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