Ménière disease
Ménière disease is a disorder of the inner ear that causes recurring episodes of vertigo, tinnitus, and hearing loss.
Overview
Ménière disease affects balance and hearing. It is characterized by sudden, unpredictable episodes of extreme dizziness (vertigo), a roaring sound in the ears (tinnitus), a feeling of pressure or fullness in the ears, and fluctuating hearing loss. These episodes can last several hours and are often accompanied by nausea and vomiting.
Symptoms
- Sudden episodes of vertigo.
- Tinnitus (roaring sound in the ears).
- A feeling of fullness or pressure in the ears.
- Fluctuating hearing loss, which may become permanent over time.
- Ongoing unsteadiness between episodes.
Causes
The exact cause of Ménière disease is unknown, but it is believed to result from a combination of environmental and genetic factors. It is associated with endolymphatic hydrops, an abnormal accumulation of fluid in the inner ear that disrupts signals related to sound and balance. While researchers have investigated various risk factors—including viral infections, trauma, allergies, and migraines—no single factor has been identified as the primary cause.
Inheritance
Most cases of Ménière disease are sporadic, occurring in individuals with no family history of the condition. A small percentage of cases are familial and may follow an autosomal dominant pattern of inheritance, though no specific associated genes have been identified to date.
