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Why does my dog have red itchy spots on his belly, and am I affected?

Updated on September 23rd, 2025

Pet's info: Dog | Mixed Breed Medium (23 - 60lb) | Male | neutered | 11 months and 14 days old | 51 lbs

My dog recently a week ago started having a couple small flat red round circles with a defined outer line on his belly groin area. They went away after a day but then I started also getting itchy and he is too. Today there are at least ten of them. They are flat. He keeps licking and itching. Thought to be fleas but when I looked I saw none. He currently has a seresto collar on.

1 Answer

Most Helpful Answer

Dr. Melanie, BVSc MS

Answered By Dr. Melanie, BVSc MS

Veterinarian

Published on April 30th, 2017

Oh no, poor Jax! It looks like he might have ringworm, which is a highly contagious fungal infection. Unfortunately it's contagious to humans, and if you are itching too, he may have passed it onto you. I would have him seen by a vet tomorrow. If he does have ringworm, the vet can prescribe medication to treat it. You should also go see your doctor if he has it so you can get treatment for it as well. Should he have ringworm, you will need to disinfect the environment because the spores can live in the home for up to 18 months. I will put a link below on how to do this:

http://www.livestrong.com/article/49666-rid-home-ringworm/
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