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Why does my dog get belly spots after playing outside? Allergy or bacteria?

Updated On September 23rd, 2025

Pet's info: Dog | American Bulldog | Male

Hi, a few weeks ago my dog got the same problem, veterinary specialist said that it was bacteria, and got some antibiotics for it. Now, after long plays in the forest+swimming in the lake, dog got the same spots on his belly. Whats the problem? Could It be allergy, or is it really the bacteria, because im little bit doubting about that. What should I do next?

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1 Answer

Most Helpful Answer

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Answered By Destini R. Holloway, DVM

Veterinarian

Published on June 25th, 2019

Poor guy. This looks like an allergic skin reaction with possible secondary bacterial infection. So it is very likely a bit of both. I would recommend getting the skin tested this time around to see if bacteria are present on the skin. Allso, if the antibiotics alone cleared things up last time, then it is likely bacteria are mostly at play here. Anytime a sensitive skin pet goes out in the wild for long periods of time, the skin barrier can be compromised, leading to bacterial infections to develop. Allergies can be quite complicated, so its best to discuss this as a possibility with your vet, especially if there are other areas on his skin that are red or irritated. If this is the only area however, then it is likely a contact allergy, which means whatever is touching the exposed areas of his skin is causing him to break out. Its best to avoid the stimuli altogether, or you can try wiping off his belly with a baby wipe or pet formulated wipes (i.e. Hexachlor wipes) after coming in from outside. I hope that this helps and best of luck moving forward with your furry friend Dog.

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