Petco Text Logo
Petco Pet Logo

Why are my dog's back legs bald & scabby? Flea allergy or infection?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed | Female | unspayed | 6 years and 9 months old | 20 lbs

Hi i Have notice by dog bald and kind of scaby up back legs has been flead washed with medicated shampoo to try elevate this. Any ideas?

This question includes photos that may contain sensitive content. Click to view.

View more to consider that the photos may include sensitive content.

1 Answer

Most Helpful Answer

Image profile

Answered By Stephanie Echols, DVM

Veterinarian

Published on August 19th, 2017

Hi and thanks for using Petco Pet Education Center, formerly Petcoach! It looks like M has a skin infection. It is likely an allergy to the flea bite. A flea bath will kill the fleas for 24 hours but it is not an ideal long term resolution. She needs an oral or topical flea prevention every 30 days. You should treat all the pets in the home. She well need to see a vet for oral antibiotics and possible steroids to relieve the allergy. Good luck and kisses to M!

Vote icon

1Pet Parents found this answer helpful

image
Have A Vet Question?

Book an appointment with the pros – our expert vets are here to help.

Sponsored