I have a 14 year old, American Quarter horse. Recently I noticed a medium sized lump on her belly. It is right under her, about in the center of her stomach. I went to go touch it and it was quiet hard, not to squishy. I have no clue what this could be. Could it be a hematoma, or a tumor? If it doesn't go down in a few days, we might call a vet out.
But if you might know what it is, Thank you so much.