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Why is my dog itching and has a dirty patch on its lower belly?

Updated On September 23rd, 2025

Pet's info: Dog | French Bulldog | Female | spayed | 18 lbs

My dog is itching constantly. Also get dirty patch on abdomen at tail end r. Why causes it?

1 Answer

Most Helpful Answer

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Answered By Dr. Melanie, BVSc MS

Veterinarian

Published on April 30th, 2017

Oh no, poor Rozis! This itching could be caused by fleas, mites, ringworm, or allergies. If she isn't up to date on her flea treatment, she will need a spot on treatment such as Advantage or Revolution. You will need to disinfect the environment as well. If she is up to date on her flea treatment, I recommend taking her into the vet for an exam tomorrow. The vet can do blood tests, skin scrapings, and use a Wood's lamp to diagnose allergies, mites, and ringworm. Once the cause of the itching is found, the vet can prescribe the appropriate treatment.

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