Ear Canal Exostoses

Bony growths narrowing the ear canal after cold water exposure, known as surfer ear

Overview

External auditory canal exostoses, commonly known as surfer ear, are the slow growth of benign bony lumps in the ear canal. It is linked to repeated exposure to cold water and wind, and is common among surfers, kayakers, and cold water swimmers. The growths develop over years and gradually narrow the canal, trapping water and wax and leading to repeated outer ear infections and, eventually, conductive hearing loss. Earplugs and hoods designed for water sports are widely used by those at risk. Severe narrowing can be treated surgically by removing the bone.