07/28/2026
Equine Papillomavirus (EPV) on the P***s: What Horse Owners Should Know
Have you noticed wart-like growths on your stallion or gelding's p***s? While it's understandably concerning, one possible cause is Equine Papillomavirus (EPV).
EPV is a virus that can cause papillomas (warts) on the skin and mucous membranes. On the p***s, these lesions may appear as small, raised, rough, or cauliflower-like growths. In some horses, they remain small and cause no discomfort. In others, they can enlarge, become irritated, bleed, interfere with breeding, or make normal pe**le function more difficult.
Signs to watch for:
• Wart-like or raised growths on the p***s or sheath
• Bleeding or ulceration of the lesions
• Discomfort during urination or breeding
• Foul odor or discharge if secondary infection develops
How is it diagnosed?
A veterinarian will perform a physical examination and may recommend a biopsy. This is important because not every pe**le mass is a benign papilloma. Some lesions can be more serious, including squamous cell carcinoma, a malignant tumor of squamous epithelial cells that can invade locally, destroy surrounding tissue, and in some cases metastasize to other parts of the body, which requires different treatment. Lesions can also be found on other areas of pink, non-pigmented skin, and any suspicious growths should always be examined by a veterinarian, as delayed treatment can lead to serious complications and, if left untreated, may potentially result in fatal outcomes.
Treatment options:
Treatment depends on the size, number, and location of the lesions. Options may include:
• Monitoring small, uncomplicated lesions
• Surgical removal
• Laser surgery or cryotherapy (freezing)
• Additional therapies recommended by your veterinarian based on biopsy results
Can it spread?
Papillomaviruses are contagious through direct contact, but not every exposed horse develops lesions. Good hygiene and avoiding contact with affected tissue can help reduce transmission.
The bottom line:
If you notice any abnormal growths on your horse's p***s or sheath, don't ignore them. Early veterinary evaluation helps ensure an accurate diagnosis and appropriate treatment, especially since some pe**le lesions can resemble more serious conditions.
When it comes to your horse's health, early detection is always the best approach.
💬 Have you ever encountered equine papillomas or another unusual sheath or pe**le condition in a horse? Share your experience or questions in the comments—your story could help another horse owner recognize the signs sooner.
