Are Dog Warts Contagious to Humans or Other Dogs?
Yes! Dog warts are contagious, but only to other dogs. Dog warts are caused by the Canine Papillomavirus (CPV), which spreads to other dogs through direct contact with infected dogs or their items.

How the Virus Spreads Between Dogs
Dog warts spread when:
- Dogs lick or sniff each other’s mouths
- Dogs share toys or bowls
- A healthy dog touches a wart on another dog
- Dogs play roughly, causing tiny skin abrasions
When Dog Warts Are Most Contagious
Dog warts are extremely contagious when:
- The wart is new and growing
- The surface is rough or bleeding
- Your dog has multiple warts appearing at once
Once the wart begins to shrink or dry out, the risk of transmission drops.
Are Dog Warts Contagious to Humans or Other Pets?
Good news! Dog warts cannot infect humans.
The virus is species-specific, meaning:
- Dogs can infect dogs
- Dogs cannot infect cats
- Dogs cannot infect people
Symptoms of Dog Warts You Should Watch For
Warts look like:
- Cauliflower-shaped bumps
- Pale, pink, or white growths
- Single or clustered bumps
- Warts on the lips, gums, eyelids, paws, or muzzle
Behavioral signs include:
- Drooling (if warts are in the mouth)
- Paw licking
- Avoiding chew toys
- Eating slowly
Treatment Options for Dog Warts
Most dog warts disappear naturally within 1-5 months. But in some cases, treatment is needed.
Veterinary Treatment Options
Your vet may recommend:
- Cryotherapy (freezing the wart)
- Laser removal
- Prescription antiviral medication
- Surgical removal (for stubborn warts)
Natural & Safe Home Remedies
Safe options include:
- Applying vitamin E oil
- Green tea compresses
- Boosting immune function with omega-3s
What NOT to Do
Never:
- Cut or pop the wart
- Use human wart treatments
- Apply harsh chemicals
This can cause pain, infection, or scarring.
Preventing the Spread of Dog Warts
Here’s how to protect other dogs:
- Avoid dog parks until warts shrink
- Don’t share blankets, bowls, or toys
- Wash hands after handling saliva
- Keep your dog’s immune system strong
When It’s Safe to Socialize Again
Your dog can safely return to public places when:
- Warts are shrinking
- No new warts are appearing
- Your vet confirms reduced risk
FAQs About Are Dog Warts Contagious?
1. Are dog warts contagious to other dogs?
Yes, they spread easily through contact or shared items.
2. Can humans catch dog warts?
No, the virus cannot infect humans.
3. How long do dog warts last?
Most go away in 1-5 months.
4. Should I isolate my dog?
Yes, limit contact with other dogs until the warts shrink.
5. Can older dogs get warts?
Yes, but they’re more common in puppies.
6. When should I call a vet?
If warts bleed, grow fast, or cause pain.
Conclusion
So, are dog warts contagious?
Well, they are to other dogs, but not to humans or other pets. With the right care for your pup, most dogs will naturally recover from these growths. Monitor your dog for any symptoms or notice any change in their health; seek out veterinary assistance in the case of discomfort or rapid spread of these lesions.
Last reviewed by vet 02-June-2026
By Dr Sarah webb - BVSc, registered veterinarian
Last updated on 12th September 2026
About the author
Dr Sarah Webb is a Melbourne-based veterinarian and Charles Sturt University graduate with experience across mixed practice, locum work, and mobile veterinary care. She has a special interest in poultry and backyard chicken health, alongside her work supporting dogs, cats, and other animals. Dr Sarah brings a practical, compassionate approach to veterinary care and is also passionate about mental health and wellbeing within the veterinary profession.
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