Labyrinthitis and vestibular neuritis: why dizziness after a virus can linger for weeks
September’s Balance Awareness Week was a timely reminder in clinic that dizziness and balance problems are not always minor or fleeting. Two of the most common causes of sudden, severe vertigo are labyrinthitis and vestibular neuritis, conditions that regularly go undiagnosed or are dismissed as a stomach bug.
Understanding what they are and why prompt assessment matters can make a significant difference to recovery.
What are labyrinthitis and vestibular neuritis?
Both conditions involve inflammation affecting the inner ear, most commonly triggered by a viral infection. They are closely related but distinct.
Vestibular neuritis affects the vestibular nerve, which carries balance signals from the inner ear to the brain. When this nerve becomes inflamed, it disrupts those signals, producing intense dizziness and balance problems.
Labyrinthitis involves inflammation of the labyrinth itself, the fluid-filled system of channels in the inner ear that manages both balance and hearing. The key distinction is hearing: labyrinthitis typically causes hearing loss or tinnitus alongside the dizziness, while vestibular neuritis does not.
Both conditions can follow a cold, flu, or other upper respiratory illness, sometimes appearing days after the original infection seems to have cleared.
Who is most affected and how common is it?
Vestibular neuritis is one of the most frequent diagnoses in specialist dizziness clinics, and research shows that peak onset occurs in adults aged 40 to 50, with no significant difference between men and women. A 2021 systematic review in the Journal of Neurology found that vestibular neuritis accounts for around 8% of all presentations to emergency departments for acute vestibular syndrome – the second most common cause after BPPV.
Despite this, many patients are initially told they have a stomach bug, inner ear infection, or anxiety, and are sent home without a clear diagnosis or plan.
Symptoms to watch for
Symptoms typically come on suddenly and can be alarming in intensity. Common features include:
- A severe sensation that the room is spinning (vertigo), often worsening with head movement
- Difficulty standing upright or walking in a straight line
- Nausea and vomiting
- Tinnitus or recent hearing changes (more likely with labyrinthitis)
- Symptoms that fluctuate during the day, often worsening towards evening
Balance problems usually begin to settle within a couple of weeks, but full recovery can take six weeks or longer in some cases.
It is worth distinguishing labyrinthitis and vestibular neuritis from benign paroxysmal positional vertigo (BPPV), another common cause of dizziness. BPPV produces brief episodes of vertigo triggered by specific head movements, typically lasting less than a minute. By contrast, the vertigo of vestibular neuritis and labyrinthitis tends to be constant and severe at onset.
Both conditions warrant specialist assessment, but the treatment approach is quite different.
Assessment and treatment at The Harley Street ENT Clinic
At the Harley Street ENT Clinic, our specialists assess and treat a full range of vertigo and inner ear conditions, including labyrinthitis and vestibular neuritis. Assessment typically involves a detailed clinical examination, hearing testing, and balance function assessments to establish the cause and severity of symptoms.
Where appropriate, we also offer vestibular rehabilitation therapy: a structured programme of exercises that retrains the brain to compensate for inner ear dysfunction. For patients whose symptoms are not settling as expected, or who have developed persistent dizziness, this can be a highly effective route back to full balance and confidence.
If your dizziness or balance problems have not resolved within a few days, call The Harley Street ENT Clinic on 020 7224 2350 or book a consultation online.