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Updated on September 23, 2025
Pet's info: Dog | Mixed Breed Large (61lb +) | Female | spayed | 10 years old | 70 lbs
Could a flea(s) cause my dog to break out on her tummy?
2 Answers

Answered By Daniel Fonza, DVM
Veterinarian
Published on August 12, 2018
Answered By Ricardo Fernandez, DVM
Veterinarian, Veterinary Oncology Resident
Thanks for using Petco Pet Education Center, formerly Petcoach! Yes, fleas can cause an allergy that can look just like that. Flea allergy can be so stressful to deal with. The main thing is getting rid of fleas effectively as that is the inciting cause driving the itchiness resulting in scratching and self-traumatic lesions like that. If she is already on a flea preventative, then you could consider switching to a different product. There are many great product in the market such as Frontline and Bravecto, among others.
Also, it is important to vacuum the house and all things that have contact with Auggie frequently. Make sure the other others pets in the household if any are also on a flea preventative. Try this for 1-3 months and if does not make a difference, she may have another type of allergy such as a food allergy or environmental allergy. Good luck and thanks for letting us take care of you today!
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