My dog has a lump on his penis that keeps coming back. What is it?

Question

I have a 3yo male neutered Cavanese that has recently developed a hematoma on the top of his penis. He is otherwise normal with no symptoms. I applied some essential oil topically and it resolved. However, about a week later, another smaller one appeared. Pet's info: Dog | Mixed Breed Small (up to 22lb) | Male | neutered | 3 years and 9 months old | 23 lbs

Christie Long, DVM · Accepted Answer

If these truly are hematomas, I would be concerned that Leo may have a problem with his platelets, which are the cells in the body that allow the blood to clot. In the absence of trauma, hematomas can occur spontaneously if platelets are very low, because the body is bleeding into places such as the space under the skin. There may also be bleeding into internal cavities, such as the chest or abdomen. As these spots have resolved and recurred, I recommend getting Leo checked out by your vet, at least to determine if his platelet count is normal. If it is, I recommend having your vet check this new spot to see if it might be a skin tumor, such as a hemangioma (benign) or a hemangiosarcoma (malignant)

My dog has a lump on his penis that keeps coming back. What is it?

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