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My male dog has a red ring on his nipple. Is it ringworm or bite?

Updated On September 23rd, 2025

Pet's info: Dog | Puggle | Male | neutered | 10 years and 1 month old | 45 lbs

My male dog has a red ring around one of his nipples. I’m not sure if this is run worm or maybe just an insect bite.

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1 Answer

Most Helpful Answer

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Answered By Ricardo Fernandez, DVM

Veterinarian, Veterinary Oncology Resident

Published on March 30th, 2018

Thanks for using Petco Pet Education Center, formerly Petcoach! This is unlikely to be ringworm at least based on how it looks right now. This is possibly due to local inflammation. I recommend that you continue to monitor Milo for now. If this lesion fails to improve on its own or it worsens have him evaluated by your veterinarian for further assessment and treatment. Good luck and have a good night!

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