Meniere's disease primarily affects which system of the body?

Meniere's disease primarily affects the vestibular system. This condition is characterized by episodes of vertigo, hearing loss, tinnitus, and a feeling of fullness or pressure in the ear, all of which are related to the inner ear's fluid balance. The vestibular system, which is responsible for balance and spatial orientation, is particularly impacted, leading to the characteristic dizzy spells experienced by individuals with this disease. While the cochlear system and auditory structures may also be influenced, the defining symptoms of Meniere's disease, including vertigo, clearly point to vestibular involvement as the primary focus of the disorder.