A conductive hearing loss is a problem in the outer or middle ear that prevents sound from reaching the inner ear. For example, a blockage or deformity in the middle ear can prevent the ossicles from vibrating properly. Middle ear infections or a ruptured eardrum are common causes of a conductive hearing loss. Often, a conductive hearing loss is temporary and can be treated with medication or surgery. When the hearing loss cannot be treated medically or surgically, the result is a permanent conductive hearing loss. In these cases, many people benefit from middle ear implants or conventional hearing aids.