Conductive Hearing Loss

Conductive Hearing Loss

Conductive hearing loss is caused by blockage or damage in the outer ear or middle ear or sometimes both. The blockage or damage is such that it prevents sound from getting passed into the inner ear (cochlea). In easier words, something is keeping sound from passing through the outer/middle ear to the inner ear and there is no problem in the inner ear. Thus, even when the sound is loud enough, the individual hears it as soft or muffled.  It is generally of mild or moderate degree, ranging from 25 to 65 decibels. In some cases, a conductive hearing loss is temporary. It all depends on the specific cause of the problem (e.g. ear wax build-up).

The most common symptom of this form of hearing loss is that sounds become quieter. The person suffering may be often found turning up the volume of the television, asking people to repeat what they say, complaining to have better hearing in one ear than the other, or have trouble listening to other people on phone. There may even be feeling of pain or pressure on one or both of ears.

CAUSES

● Birth defects

● Injury to the outer ear

● Ear infections

● Head trauma

● Blockage of the ear canal

● Stiffening of the ear drum or middle ear bones

● Malformation of outer ear, ear canal, or middle ear structures

● Fluid in the middle ear

● Ear infection

● Allergies

● Perforated eardrum

● Impacted earwax

● Infection in the ear canal

● Otosclerosis

Fortunately, conductive hearing loss can be medically or surgically treated