Will nasal polyps go away on their own?

In rare cases of mild inflammation some improvement may occur, but most nasal polyps do not resolve on their own. Veterinary examination is usually needed to determine the next step, which may include endoscopy, biopsy, or medical management as advised by your vet.

How does the vet diagnose nasal polyps?

Diagnosis is typically confirmed through nasal endoscopy with biopsy for histopathology. This is often combined with X-ray, CT, or bloodwork to assess the overall situation. Please consult a veterinary specialist for guidance.

Are nasal polyps likely to recur after surgery?

Nasal polyps carry a notable risk of recurrence. Regular endoscopic or imaging follow-up and close monitoring of symptoms are required. Discuss a long-term monitoring plan and preventive measures with your vet.

Is it helpful to bring a nasal discharge sample to the appointment?

Yes, it can be helpful. A fresh nasal discharge sample can be used for cytology or culture to help rule out infection or characterize the nature of the inflammation. Collect and store the sample as directed by your vet.

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

Nasal & Nasopharyngeal Polyps in Dogs and Cats: Sneezing, Endoscopy & Care Guide [2025]

Nasal and nasopharyngeal polyps are most common in young cats and can cause breathing difficulties and discharge; surgical removal is the primary treatment.

Take 1 minute to check the symptoms first

Last updated: 2026/01/06

Pethealthmap Editorial Team

Sources: WSAVA, AVMA, National Taiwan University Veterinary Hospital

When to See a Vet

Seek Emergency Care Immediately

•Lips or gums are visibly purple and the discoloration persists
•Persistent inability to swallow or excessive drooling
•Rapid breathing or obvious signs of respiratory distress

Schedule a Clinic Visit Soon (within 24–72 hours)

•Repeated sneezing accompanied by thick nasal discharge
•Persistent discolored nasal discharge from one or both nostrils
•Decreased appetite or noticeable difficulty swallowing during eating

01What symptoms indicate a problem?

Nasal polyps in dogs and cats typically present as upper respiratory signs that may affect breathing and eating; some cases require prompt veterinary attention.

Repeated sneezing, often accompanied by thick or purulent nasal discharge
Persistent unilateral or bilateral nasal discharge with changing color and volume
Difficulty swallowing or discomfort and food selectivity while eating
Reduced activity or changes in gait, appearing tired or unsteady
Purple or pale discoloration of the lips or gums (sign of oxygen deprivation or circulatory abnormality)

Seek emergency care immediately if you notice the following symptoms:

⚠️ Obvious and persistent purple discoloration of the lips or gums
⚠️ Continuous inability to swallow or excessive drooling
⚠️ Rapid breathing or visibly labored respiration

02How can I assess the situation at home? Key observations and emergency criteria

Key observations to make before seeing the vet — they help the veterinarian quickly understand the progression and changes in your pet's condition.

Record the frequency, timing, and circumstances of sneezing and nasal discharge
Note any changes in appetite, food intake, or water consumption
Observe whether energy levels and activity have decreased or gait has become abnormal
Weigh your pet regularly and track weight trends
Take photos or videos of the nasal discharge color, breathing sounds, and breathing pattern
Keep at least three days of symptom records to bring to the veterinary appointment

03How will the vet make a diagnosis? Common diagnostic tests

The clinic typically uses physical examination combined with imaging and histological assessment to determine lesion location and severity.

Physical examination

assessment of the nasal cavity, throat, and upper airway appearance

X-ray

initial evaluation of bony changes in the nasal cavity and sinuses

Endoscopy and biopsy

direct visualization with tissue sampling for histopathology

Cytology or culture

analysis of nasal discharge or collected samples

Advanced imaging (CT or MRI)

assessment of deep or invasive lesion extent

Bloodwork and general health screening

evaluation of suitability for anesthesia or surgery

04What treatment and care is needed after diagnosis? Medications, dietary adjustments and care guide

Treatment depends on the underlying cause and extent of the lesion; post-surgical and pharmacological follow-up alongside regular imaging checks is important.

Medication can reduce inflammation and manage symptoms; follow-up as directed by your vet is essential
Endoscopic or surgical removal is commonly used for significant polyps or cases with airway obstruction
Regular recheck appointments are needed during treatment to monitor symptoms and side effects
Improving the home environment and minimizing irritants can reduce the chance of recurring inflammation
Schedule imaging or endoscopic follow-up to confirm whether the polyp has recurred or residual lesions remain
Discuss a long-term monitoring plan and potential recurrence risk with a veterinary specialist

05What should I prepare before the vet visit? Key information to help the vet identify the cause quickly

Record the onset of symptoms, daily changes, and any associated triggers

List recent medications, supplements, and known allergies

Capture video of sneezing episodes, nasal discharge, or abnormal breathing for reference

If possible, bring a small fresh nasal discharge sample stored in a sealed container

Bring previous imaging results or diagnostic reports if available for comparison

It is advisable to call ahead and ask whether a specialist endoscopy appointment needs to be arranged

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.