What are the common symptoms of otitis media and interna in dogs and cats?

Common signs include vomiting, head tilt, unsteady gait, stumbling, ear pain, and abnormal eye movements. A vet assessment is recommended to identify the underlying cause.

What tests does the vet typically run to find the cause?

The vet will usually perform an ear and neurological examination, ear swab cytology, and bacterial culture, with radiographs, CT, or MRI arranged if needed.

What information should I record at home to bring to the appointment?

Record vomiting frequency and description, appetite and weight changes, and film any gait or eye abnormalities — this helps the vet assess the situation quickly.

My pet is vomiting but seems alert — do I still need to see a vet right away?

If vomiting persists or is accompanied by head tilt, unsteady gait, or reduced appetite, seek veterinary care promptly. Even a single brief episode should be monitored and discussed with 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

Otitis Media & Interna in Dogs and Cats: Symptoms, Diagnosis & Care Guide [2025]

Otitis media and interna can cause vestibular signs such as head tilt and nystagmus, requiring prolonged antibiotic therapy and sometimes surgery.

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 immediate veterinary care (emergency)

•Sudden hind limb weakness with complete inability to stand
•Persistent vomiting, inability to eat, or signs of dehydration
•Obvious change in consciousness, sluggish response, or excessive lethargy

Schedule a clinic visit soon (within 24–72 hours)

•Repeated vomiting or persistent nausea with decreased appetite
•Tilted gait or noticeably unsteady walking with obvious swaying
•Flinching or showing pain when the head or ears are touched

01What symptoms indicate something is wrong?

Middle or inner ear problems commonly affect balance and digestion. Clinical signs can range from mild discomfort to pronounced neurological symptoms — watch for any signs that persist or worsen.

Repeated vomiting or persistent nausea with reduced appetite
Unsteady gait, stumbling, or persistent head tilt
Flinching or signs of pain when the head or ears are touched
Eye discharge, abnormal eye position, or asymmetric eye movement (nystagmus)
Limb weakness or sudden inability to move — arrange a clinic visit as soon as possible

Seek emergency care immediately if you notice the following symptoms:

⚠️ Sudden hind-limb paralysis or complete inability to move
⚠️ Continuous vomiting preventing eating, or signs of dehydration
⚠️ Marked change in consciousness or significant lethargy

02How to assess at home: key observations and when to go to the emergency clinic

Recording objective information at home helps your vet quickly understand the progression and severity. Bring the notes below to your appointment.

Log the number of vomiting episodes, when they occur, and what the vomit looks like
Note changes in alertness, willingness to interact, and any increase in sleepiness
Track appetite, how much is eaten at each meal, and water intake
Use your phone to film gait abnormalities, head tilt, or abnormal eye movements
Weigh your pet and record any recent weight changes
Bring all notes and videos to the specialist consultation for review

03How will the vet diagnose the problem? Common examination steps

On arrival, the vet will typically perform an ear and neurological examination, supplemented by imaging and laboratory tests as needed to identify the cause and extent of disease.

Ear examination and neurological assessment (palpation, reflex testing, and balance evaluation)

Radiographs to assess skull and middle-ear structural abnormalities

Ear swab cytology to identify inflammation, bacteria, yeast, or parasites

Bacterial culture and sensitivity testing to guide antibiotic selection

Advanced imaging

CT to assess bony destruction, MRI to evaluate the inner ear and brain

04What treatment and home care are needed? Medication, diet, and care guide

Treatment is tailored to diagnostic findings and requires regular follow-up to assess response; home monitoring and care are essential to reduce the risk of recurrence.

Antibiotics or antimicrobial therapy are adjusted based on examination findings and culture results
Anti-nausea medication and supportive care help relieve discomfort — follow your vet's instructions carefully
Schedule regular rechecks to assess ear canal health and neurological improvement
Monitor weight, appetite, bowel and bladder habits, and alertness, and report changes to your vet
Prevent water or foreign material from entering the ear canal at home; clean and care for the ears only as directed
If symptoms do not improve or recur, arrange specialist imaging for further evaluation

05What to prepare before the vet visit: key information to help your vet find the cause quickly

Write down when symptoms first appeared and how they have progressed

Record the frequency, timing, and description of each vomiting episode

Bring a log of appetite and bowel movements from the past few days for the vet to review

List all current medications and supplements your pet is taking

Use video to document gait changes, vomiting episodes, or eye abnormalities for in-clinic review

Bring any previous test reports or imaging studies (X-rays, CT, or MRI scans)

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.