Can papillomatosis spread to other pets?

Some papillomas are caused by viruses and can spread through direct contact or contact with broken skin. Isolate affected pets from others and ask your vet whether testing or quarantine is needed.

Will papillomas resolve on their own?

Many papillomas in young animals spontaneously regress within weeks to months. However, it is still important to monitor for signs of infection or ongoing progression, and veterinary treatment may be needed if the condition does not improve.

What tests are needed to confirm the cause?

Vets typically recommend cytology or biopsy to examine cell morphology and may use PCR testing to determine whether a virus is present. Results guide further management decisions.

How much do the tests and treatment usually cost?

Costs vary by clinic and region — ask your vet for an estimate before proceeding.

Disease Guide

Papillomatosis in Dogs & Cats: Wart-like Skin Nodules, Diagnosis & Care [2025]

Papillomatosis is caused by papillomavirus and is most common in the mouths of young dogs. Most cases resolve on their own, but malignant transformation may occur in immunocompromised animals.

Take 1 minute to check the symptoms first

Last updated: 2026/01/06

Pethealthmap Editorial Team

Sources: WSAVA, National Taiwan University Veterinary Hospital

When to See a Vet

Seek immediate veterinary care (emergency)

•The lesion is bleeding heavily and bleeding control continues to fail
•Severe generalized weakness, inability to stand, or reduced responsiveness
•The lesion has extensive ulceration or tissue sloughing

Schedule a veterinary appointment soon (within 24-72 hours)

•Nodules are rapidly enlarging or increasing in number over a short period
•The lesion repeatedly breaks open, oozes, or forms bloody scabs
•Frequent licking or chewing at the lesion with changes in behavior or appetite

01What symptoms indicate a problem?

Papillomatosis typically presents as cauliflower-like or wart-like nodules on localised skin or mucous membranes, and may cause local discomfort or behavioural changes.

Cauliflower-like or wart-like nodules on the skin or mucous membranes, often with irregular edges
Lesion surface may break down, weep, bleed, or crust over
Pet repeatedly licks, bites, or scratches the lesion, raising the risk of secondary infection
Swollen lymph nodes near the lesion, or localised redness, swelling, and inflammation
If the lesion is painful or itchy, changes in behaviour or activity level may be noticed
A small number of cases are accompanied by lethargy or reduced appetite

Seek emergency care immediately if you notice the following symptoms:

⚠️ Heavy bleeding from the lesion that is difficult to control
⚠️ Rapid enlargement of the lesion or signs of tissue death (necrosis)
⚠️ Obvious generalised weakness or persistent refusal to eat

02How can I assess the situation at home? Home monitoring and when to seek emergency care

Observing and documenting specific changes at home helps your vet assess the progression of the condition and plan appropriate tests.

Take close-up photos of the lesion and overall appearance, and record video of any abnormal gait or licking behaviour
Note when symptoms first appeared, how quickly they have developed, and any recent changes
Monitor for changes in appetite, water intake, and urination/defecation patterns
Observe whether the lesion shows any breakdown, discharge, bleeding, or foul odour
Watch for noticeable decreases in body weight, activity level, or quality of sleep
If you have any concerns, schedule a dermatology or oncology consultation as soon as possible

03How will the vet make a diagnosis? Common tests and procedures

At the clinic, the vet will assess the characteristics of the lesion and order appropriate tests to confirm the cause and rule out complications.

Physical examination

palpation of the lesion to assess size, texture, and pain response

Cytology or tissue biopsy

evaluation of cell morphology and the nature of the lesion

PCR testing

sample collection and viral gene testing when a viral cause is suspected

Blood and biochemistry panel

assessment of overall health and signs of infection

Urinalysis and, where necessary, referral for advanced diagnostics or specialist consultation

04What are the treatment and care steps after diagnosis? Medication, diet, and home care guide

Treatment is tailored to the number and severity of lesions, with an emphasis on wound care and regular monitoring to prevent recurrence or secondary infection.

Local surgical excision or lesion management as recommended by your vet
Anti-inflammatory or anti-infective treatment where needed to control symptoms
Keep the skin clean and use topical care products as directed to reduce irritation
Regular follow-up appointments to check wound healing and monitor for recurrence
Repeat biopsy or PCR testing as needed to track disease progression and rule out malignant change
Long-term evaluation and monitoring by a dermatology or oncology specialist is recommended

05What should I bring to the vet appointment? Key information to help the vet diagnose quickly

Note when symptoms started, how they have changed over time, and any visible differences in appearance

Compile a recent record of diet, bowel movements, urination, and activity levels

List any current medications, supplements, and known allergies

Bring close-up photos or videos of the lesion for the vet to compare changes over time

Carry previous test reports or relevant medical history for reference during the consultation

This content is for reference only and cannot replace a professional veterinary diagnosis. If your pet shows signs of illness, please seek veterinary care promptly.

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