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My dog has a pea-sized growth on her eye. Could it be a cyst?

Updated On September 23rd, 2025

Hi I already asked but the vet that gave me an answer said it would be best to add a photo ...I have a 9 year old terrier ( not sure of her breed) with a growth on her eye it started about a year ago with wat looked like a birthmark or pimple but has grown to about the size of a pea she does not seem to be in pain or be bothered by the growth ...waiting for a vet appointment any advice would be great

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3 Answers

Most Helpful Answer

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Answered By Jennifer Ladd, DVM

Veterinarian

Published on May 15th, 2017

To me, this looks like a Meibomian gland cyst. These are best removed surgically. It is unlikely that it will go away on it's own. It will likely continue to grow. The surgery will remove part of the lid margin, and then close with a suture. They heal very well.

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    Answered By Jeffrey Milner

    Veterinarian

    Published on May 15th, 2017

    I am not exactly sure what you mean by the waterline of the eye, but I think you might be talking about the area just above the lower eyelid. Dogs do not tend to get sties. If you take a picture and post it on here I will be able to give you a better idea of what it might be. However, the most common growth we see in this area of the eye is something called a Meibomian Gland adenoma. They are usually benign in terms of malignancy, but can become problematic if they grow in size. Once they start to touch the surface of the eye, they can cause irritation to the conjunctiva and ultimately result in scratching of the corneal surface. They can also result in the inappropriate tear production within the eye, which can cause corneal ulceration. Depending on the position and the size, the best thing to do sometimes is to have the mass removed surgically or by freezing it off. In about 5% of cases these masses can be malignant, so if you do choose to have them removed having a biopsy is often the best option.

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    Answered By Jeffrey Milner

    Veterinarian

    Published on May 15th, 2017

    This is most likely a Meibomian Gland grwoth. This is a growth associated with the third eyelid. They are usually benign, but in rare cases can be malignant growths. The only way to determine this is with removal and biopsy. There are many pictures of these types of tumors on google images for you to view. Many times these masses can be left alone, but they can also become too large and irritate the surface of the eye. When this happens, episodes of conjunctivitis and corneal ulceration can occur. These masses can also cause issues with tear production within the eye. When any of these instances occur, the best thing to do is have the mass removed.

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