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My cat has skin sores. Could it be eosinophilic granuloma? What to do?

Updated On September 23rd, 2025

Pet's info: Cat | American Shorthair | Male | neutered | 8 lbs

I think my cat has eosinophilic granuloma complex. It looks a lot like this photo but a little worse. How can I help heal it? And how can I know for sure that it is eosinophilic granuloma complex? What tests are involved to get that result? Thanks

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4 Answers

Most Helpful Answer

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Answered By Dr. Dayna, DVM, CVA

Veterinarian, Certified Veterinary Acupuncturist

Published on April 5th, 2018

Oh goodness! Poor Gizmo! Often looking under the microscope at a quick smear of the fluid from the lesion can give your veterinarian a good idea if eosinophilic complex is possible. If the cells do not support that diagnosis then a biopsy may be recommended. Often these lesions also have a secondary infection so often I use antibiotics as well as steroids to resolve the lesions. Often a hypoallergenic diet may also be helpful. Best of luck and I hope he improves soon. Thank you for using Pet Coach.

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    Answered By Ricardo Fernandez, DVM

    Veterinarian, Veterinary Oncology Resident

    Published on January 1st, 2018

    Thanks for using Petco Pet Education Center, formerly Petcoach! Yes, it could be a fungal infection though it could also be a bacterial infection or even a non-infectious lesion perhaps due to mild trauma. I recommend that you have him evaluated by your veterinarian for further assessment and treatment. Your veterinarian would be able to look at it under the microscope and determine what kind of infection this is most likely and treat accordingly. Good luck and happy new year!

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    Answered By Dr Stafford, BVetMed, MRCVS

    Veterinarian

    Published on June 21st, 2017

    It looks pretty bad, I imagine it's very sore. It could be duecto a number of things, it could be an infection, it could be a bad allergic reaction or cats get an immune condition called eosinophillic granuloma complex, that can present similar to this. I would take Shorty to the vet as this will need treated before it gets worse.

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    Answered By C. Rathjens, DVM

    Veterinarian

    Published on March 18th, 2019

    Unfortunately it's really hard to tell from the picture, because many skin issues look the same in a cat. I would be concerned about an allergy (allergies to fleas, food, or the environment being the most common causes), or possibly a skin parasite that is causing itching. I would recommend a vet visit for a simple test called a skin scrap in which they will look at some skin cells under the microscope to see if they can find any organisms, and then treat accordingly. Good luck!

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