Semicircular canal dehiscence (SCD) is an abnormal connection between the inner ear and another space. It can occur spontaneously or following trauma. Symptoms can include some combination of disequilibrium, hearing loss, overly sensitive hearing, and tinnitus. Workup may include audiometry, vestibular evoked myogenic potentials, and a temporal bone CT. If a diagnosis of SCD is confirmed, then management depends on how intrusive or limiting the symptoms are. If symptoms are tolerable, then no treatment is needed. If symptoms are intolerable, then surgical repair of SCD may be warranted.