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Why does my dog have a red mass on his eye? How do I treat it?

Updated on September 23rd, 2025

Pet's info: Dog | German Shepherd | Male | unneutered | 4 years and 9 months old | 80 lbs

My dog developed a redish mass on his eyeball. Do you know what it miigght be and how to treat it

1 Answer

Most Helpful Answer

Dr. Strydom, DVM

Answered By Dr. Strydom, DVM

Veterinarian

Published on May 26th, 2023

Hello, thank you for using Petco Pet Education Center, formerly Petcoach.

This mass on the cornea could be a component of pannus (very common ocular disease seen in GSD) or this could be granulation tissue (possibly from an old injury) or it could neoplasia (cancer). No matter what, this is highly abnormal and needs to be addressed even if it doesn't seem to bother him.

It is very important that you take Fritz to a veterinarian for an exam. This is not something you can treat at home. Be aware that your vet may recommend that Fritz see a veterinary ophthalmologist as this may need specialized testing.

Hope this helps. Best wishes.
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