1. Sound travels through the external ear and impacts on the eardrum.
2. Vibrations of the eardrum cause oscillations in the three bones (malleus, incus and stapes) in the middle ear.
3. Vibrations set the fluid in the cochlea in motion. Tiny hair cells in the cochlea perform the transduction of the sound waves into electronic impulses.
4. Auditory system transmits these electronic impulses to the brain for processing.

1. Problems of the external ear include impacted earwax and ear infection.
2. Problems of the middle ear include a perforated eardrum, fluid in the middle ear (Serous otitis media), chronic otitis media, otosclerosis, and poor Eustachian tube functioning.
3. However, the most common cause of hearing loss is due to problems of the inner ear.

1. Aging
2. Labyrinthitis
3. Noise induced hearing loss
4. Inner ear syphilis
5. Viral infection of the inner ear or nerve
6. Hearing loss that runs in the family
7. Diseases such as diabetes, kidney disease, high blood cholesterol, etc.
8. Accidents causing damage to the inner ear
9. Tumors that develop on the balance and hearing nerves

• Duration of hearing loss
• Symptoms that go very quickly, come and go, or become worse
• Ear problems such as sound in the ear or dizziness
• Other symptoms such as facial numbness and loss of balance
• Use of medications and underlying medical conditions
• Family history of hearing loss
• Exposure to loud noise from shooting, using fire crackers, or working in factories

• Audiogram to see how well you hear words at various volumes to determine the type of hearing loss and frequency.
• Tympanogram to see how well the middle ear is functioning.
• Evoke auditory response to test the hearing nerve.

• Problems of the external ear and middle ear can be treated with medications or surgery.
• Problems of the inner ear are quite complicated. Treatment depends on the cause of the hearing loss and may be ongoing. Delay in treatment may affect the results.
• You can prevent hearing loss by avoiding risk factors such as exposure to loud noise and certain medications. Seek immediate medical attention if any abnormalities are present or suspected.

1. Bacterial or viral infection of the middle ear, inner ear or brain from meningitis, brain syphilis, herpes zoster of the ear, mumps, and rubella.
2. Congenital deafness caused by maternal rubella infections or certain medications during pregnancy. An untreated hearing problem can have an effect on a child’s ability to learn spoken language. Adults with hearing loss would have communication problems at work, which may result in them losing their jobs.

1. Otitis or otitis media can be treated with surgical procedures.
2. Cochlear disorder:

2.1 Mild symptoms that have been present for less than 1 month can be treated with oral medications.

2.2 In the case of mild hearing loss, a hearing aid inserted into the ear or pushed deeper into the ear canal can help with making sounds stronger.

2.3 In the case of severe hearing loss, in which a hearing aid cannot help, a cochlear implant may be an option. This is a complicated procedure. Performing a cochlear implant requires the cooperation of a team of surgeons and speech therapists.