What Causes the Symptom of Ringing in the Ear?
Ringing in the ears, also called tinnitus, is a symptom that often is associated with various forms of hearing loss. The condition is characterized by a persistent or occasional internal ringing, hissing, roaring or clicking sound, report doctors at the National Institute on Deafness and Other Communication Disorders (NIDCD). Tinnitus also can be a symptom of other conditions, such as trauma from loud noises, an adverse reaction to medication; or damaged blood vessels, allergies or tumors and other diseases. While more than 25 million Americans have experienced ringing in the ears, most cases pass in a short time when the originating condition is cleared. For others, the ringing is so severe that it interferes with daily activities.
