Most pet owners are familiar with the fact that humans can develop warts but did you know your dog can get them too? While the idea of “warts” might sound alarming, they are fairly common in dogs and are usually caused by specific viruses that trigger small, round skin tumors. Understanding how to recognize, diagnose, and manage these growths is an important part of responsible pet care.
What Are Canine Warts?
In dogs, warts are more formally known as viral papillomas. These are benign skin tumors caused by the canine oral papillomavirus. Unlike human warts, they are not caused by the same virus, which means:
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Dogs cannot catch warts from humans, and
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Humans cannot get warts from dogs.
Canine viral papillomas often have a distinctive appearance round in shape with a rough, irregular surface, resembling a sea anemone or a small cauliflower.
Where Warts Commonly Appear
In most cases, these growths are found:
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Inside the mouth or around the gums
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Occasionally on eyelids or other parts of the face
They are most often seen in young dogs, usually two years old or younger, because their immune systems are not yet fully developed.
How Canine Warts Spread
The canine oral papillomavirus is spread only between dogs it cannot infect humans or other animals such as cats. The virus is typically passed through direct contact with an infected dog’s warts, saliva, or contaminated objects like toys and water bowls.
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Incubation period: Once exposed, it can take 1–2 months for warts to appear.
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Multiple growths: Infected dogs usually develop warts in clusters rather than as a single lump.
It is still unclear whether dogs need to have visible lesions in order to transmit the virus, so caution is always advised when your dog interacts with other dogs who may be infected.
Why Veterinary Examination Is Important
While many warts are harmless and may disappear on their own as your dog’s immune system strengthens, it’s important to have any unusual skin growth checked by a veterinarian. Here’s why:
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Not all round skin growths are viral papillomas.
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Some may be cysts, benign tumors, or even early signs of cancer.
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A biopsy may be required to confirm the diagnosis and rule out more serious conditions.
Treatment and Management
In most cases, canine warts will resolve naturally within a few weeks to months without any medical intervention. However, treatment may be necessary if:
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The warts cause discomfort or interfere with eating or drinking.
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They become infected or bleed.
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The growths are in areas that the dog constantly scratches or licks.
Common treatment options include:
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Surgical removal for large or persistent growths
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Cryotherapy (freezing)
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Immune-boosting medications in severe cases
Your veterinarian will determine the best approach based on your dog’s age, health, and the severity of the infection.
Caring for a Dog with Warts
If your dog has been diagnosed with viral papillomas:
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Limit close contact with other dogs until the warts have cleared.
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Avoid sharing toys, water bowls, or bedding with other pets.
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Monitor the growths regularly and note any changes in size, color, or texture.
Remember, your dog cannot tell you when something is irritating or painful, so regular observation and prompt veterinary care are essential.
While canine warts are generally harmless and self-resolving, they can still be bothersome for your dog especially if they appear in sensitive areas like the mouth or eyes. By learning to recognize the signs and seeking veterinary advice when necessary, you can ensure your dog stays comfortable, healthy, and happy.
Your attentiveness and loving care can make all the difference in catching these growths early and managing them effectively.
