The majority of patients present in their mid-30s to late 40s. This is likely due to a combination of the slow growth of the bone and the decreased participation in activities associated with<unk>  past the 30s. However,<unk>  is possible at any age and is directly proportional to the amount of time spent in cold, wet, windy weather without adequate protection. The normal ear canal is approximately 7 mm in diameter and has a volume of approximately 0.8 ml (approximately one-sixth of a teaspoon). As the condition progresses, the diameter narrows and can even close completely if untreated, although<unk> ers generally seek help once the passage has constricted to 0.5-2 mm due to the noticeable hearing impairment. While not necessarily harmful in and of itself, constriction of the ear canal from these growths can trap debris, leading to painful and difficult to treat infections.
Surfer's ear
Morel's ear
Christmas eye
Preauricular sinus and cyst
Protruding ear
Rectovestibular fistula
Neuroendocrine adenoma middle ear
Acalvaria