Hearing Loss

What are the different types of hearing loss?

Hearing loss can be categorized by many different types. Two types of hearing loss are sensorineural and conductive. Both types of hearing loss can be congenital (present at birth) or acquired.

  • Sensorineural. A loss of function within the inner ear or with the connection to the brain. Causes of this type of hearing loss include:
    • Congenital factors (conditions present at birth) such as:
      • Infection by the mother with toxoplasmosis, rubella, cytomegalovirus, herpes, or syphilis
      • Maternal diabetes
      • Complications associated with Rh factor in the blood
      • Genetic factors and syndromes the child has at birth
      • Low birthweight or prematurity
      • Hereditary (in the family)
    • Acquired
      • Loud noise exposure
      • Trauma
      • Infections
      • Damage from certain medications that can be harmful to the ears
  • Conductive hearing loss. A problem in the outer or middle ear where sound waves are not sent to the inner ear correctly. Conductive hearing loss is the most common type of hearing loss in children and is usually acquired. Factors that may cause this type of hearing loss are:
    • Congenital factors (conditions present at birth) such as:
      • Anomalies of the pinna (the outside of the ear)
      • Anomalies of the tympanic membrane (eardrum)
      • Anomalies of the external ear canal
      • Anomalies of the ossicles (the three tiny bones that deliver the sound waves to the middle ear)
    • Acquired
      • Excessive wax
      • Foreign bodies in the ear canal, such as beads or popcorn kernels
      • Tumors of the middle ear
      • Problems with the eustachian tube
      • Ear infections such as otitis media
      • Chronic ear infections with fluid in the middle ear
      • Perforation of the eardrum
Children's Team

Children's Team

Providers

zalzal

George Zalzal

Division Chief, Ear, Nose, and Throat (Otolaryngology)
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Mollys Story

Molly's Story

Three-year-old Molly is obsessed with the movie “Frozen.” And like the fearless princess in Disney’s icy animated epic, there’s something very special about Molly. She was born deaf.

Departments

Departments

Hearing and Speech

Children’s National pediatric hearing and speech specialists provide diagnostic, treatment, and group therapy services for children with audiology (hearing) and communication disorders. Because these problems can affect a child’s development, we emphasize early diagnosis and early intervention.

Ear, Nose and Throat (Otolaryngology)

Our pediatric ENT (otolaryngology) experts provide advanced, comprehensive services for children.

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Molly's Story

Mollys Story

Three-year-old Molly is obsessed with the movie “Frozen.” And like the fearless princess in Disney’s icy animated epic, there’s something very special about Molly. She was born deaf.

Read More of Molly's Story