Sensorineural hearing loss - types, causes and symptoms

Sensorineural hearing loss is a lesion of one or more parts of the auditory analyzer. Symptoms: hearing loss, tinnitus, dizziness and imbalance. Sensorineural hearing loss is a hearing loss in which any of the sound-perceiving structures of the auditory analyzer is affected. As a rule, sensorineural hearing loss is caused by defects in the sensory-epithelial (hair) cells of the spiral (Corti's) organ of the cochlea of the inner ear. Sensorineural hearing disorders associated with damage to the vestibular cochlear (VIII cranial) nerve or auditory centers of the brain are uncommon. And very rarely, only the central parts of the auditory analyzer are affected by lesions. With the pathology of the latter, the threshold of auditory sensitivity is normal, but the quality of perception of sounds is so low that it is impossible to understand speech.