What is characterized by an increase in endolymph in the inner ear?

Meniere's Disease is characterized by an abnormal increase in endolymph, a fluid within the inner ear. This condition leads to a triad of symptoms: episodic vertigo, hearing loss, and tinnitus. The excess endolymph can lead to swelling of the inner ear structures, which disrupts normal function and results in the characteristic symptoms.

The buildup of fluid affects the balance and auditory systems, resulting in the episodic nature of the disease, where individuals experience sudden vertiginous episodes. Meniere’s Disease is specifically related to the pathology of the inner ear, differentiating it from other conditions, such as Parkinson's Disease, which primarily affects the nervous system; tinnitus, which is a symptom rather than a disease; and labyrinthitis, an inflammation that may not necessarily involve an increase in endolymph.