What can cause hearing loss?
The types of hearing loss below list common causes
Conductive hearing loss may be caused by: something blocking the ear canal, closed auricle, otitis media, fluid in the middle ear, or otosclerosis.
Sensorineural hearing loss may be caused by premature birth or birth complications, heredity, CMV (cytomegalovirus), meningitis, mother-child blood incompatibility, or rubella (German measles).
A Mixed loss may be caused by any of the above conditions, or by a combination of them.
Conductive hearing loss may be caused by: something blocking the ear canal, closed auricle, otitis media, fluid in the middle ear, or otosclerosis.
Sensorineural hearing loss may be caused by premature birth or birth complications, heredity, CMV (cytomegalovirus), meningitis, mother-child blood incompatibility, or rubella (German measles).
A Mixed loss may be caused by any of the above conditions, or by a combination of them.
Additional types of hearing loss include functional and malingering loss. Functional loss is one that is seen as a result of trauma. Malingering loss is one that is a deliberate fake by the individual.
The time an individual loses hearing definition can also be defined through the following terms:
Congenital loss - this type of loss is present from birth and typically identified by a newborn hearing screening in the hospital soon after birth.
Adventitious loss - this type of loss presents itself after birth.
Prelingual loss - a prelingual loss is one which is found before the individuals develops spoken language. This type of loss can also be congenital.
Postlingual loss- - a postlingual loss is one which is occurs
Many of the above causes of deafness may also cause additional difficulties including those related to sensory, motor or learning function.
40% of DHH children exhibit a second disability. Deaf and hard-of-hearing individuals are at higher risk for vision problems, slower information processing, more likely to be easily distracted by visual stimuli, may exhibit lower cognitive functioning if not exposed long term to language, and the possibility of a smaller short term memory span. Many times it may seem like a DHH student has an intellectual disability, but may be mislabeled.
It should be noted that in IQ testing between DHH and hearing peers, the IQ scores are within the same range for both groups.
Many of the above causes of deafness may also cause additional difficulties including those related to sensory, motor or learning function.
40% of DHH children exhibit a second disability. Deaf and hard-of-hearing individuals are at higher risk for vision problems, slower information processing, more likely to be easily distracted by visual stimuli, may exhibit lower cognitive functioning if not exposed long term to language, and the possibility of a smaller short term memory span. Many times it may seem like a DHH student has an intellectual disability, but may be mislabeled.
It should be noted that in IQ testing between DHH and hearing peers, the IQ scores are within the same range for both groups.