Updated On September 23rd, 2025
Pet's info: Farm Animal | Horse | Female | 3 years and 11 months old | 1000 lbs
My 4 year old quarter horse mare has developed a hard lump on her under her stomach/ flank. It is not mobile and is pretty firm. It is under the skins & hair. It doesn’t bother her when I touch or squeeze it. It is about the size of a pea, marble slightly larger. os this something I should just keep an eye on or should I be concerned and have a vet come check it? Since she’s so young should I be concerned about a cancer or would it be possible this is a cyst or something from a bug bite?
1 Answer
Published on May 26th, 2019
It is most likely a cyst but of course I cannot be 100% sure just by looking at a photo. I suggest you just monitor it for now. If it becomes larger or starts to bother her you should have your vet out to check her. Cancer is unlikely.
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