Petco Text Logo
Petco Pet Logo

My dog has black spots on her belly. Are they allergies or infection?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed Large (61lb +) | Female | spayed | 2 years and 3 months old | 80 lbs

My dog has black spots on her belly that seem to start getting better then get worse again. Could this just be allergies or flea dust or more like a yeast infection? It doesn’t really seem to bother her.

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 Dr. Davis

Veterinarian

Published on September 5th, 2018

This looks like a mild bacterial skin infection. Dogs can get this from laying on damp ground. Often it will go away on its own. You can bathe the area with antibacterial shampoo once or twice weekly to help it heal more quickly. Since she’s not bothered by it I’m not overly concerned. Should it worsen please take her in for an exam. She may need oral antibiotics if is gets bad. Thanks for using Petco Pet Education Center, formerly Petcoach to help you care for Marley.

Vote icon

27Pet Parents found this answer helpful

image
Have A Vet Question?

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

Sponsored