Horse Side Vet Guide ®

Equine Health Resource

Lump, Bump, Growth on Shaft of Tail

Code Yellow - Contact Your Vet at Your Convenience for an Appointment

Code Yellow - Contact Your Vet at Your Convenience for an Appointment

  • If you consider this a chronic and relatively mild problem that is not changing rapidly.

Hard lumps and bumps in this area may result from infected wounds or abscesses. If the horse is a gray, a bump here is melanoma until proven otherwise. Fractures can also cause hard lumps on the tail.

WHAT TO DO

Assess your horse’s general health using the Whole Horse Exam (WHE), examine the area, and take a photo of it to send to your vet. Feel the area for swelling, redness, or a pain response. Is the lump hard or soft? How large is the lump?

If the horse is a gray and a melanoma is suspected, a dated photo provides a baseline for comparison later. Check the other common areas where melanomas develop, around the anus, on the sheath, behind the jaw, and within the tissue of the lips. Share your findings and concerns with your vet.

WHAT YOUR VET DOES

Your vet will evaluate the area and may suggest a biopsy or treatment, depending on their approach.

Author: Doug Thal DVM Dipl. ABVP

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