Related Experiment Video
Updated: May 20, 2026
09:09
Cryosectioning and Immunostaining Mouse Inner Ear Tissue: From Embryonic to Adult Stages
Published on: April 11, 2025
Ear infection and hearing loss amongst headphone users
1Department of Otorhinolaryngology, Universiti Kebangsaan Malaysia Hospital.
The Malaysian Journal of Medical Sciences : MJMS
|July 31, 2012
Summary
This study found no ear canal infections in headphone users. While some hearing impairment was detected, it was not linked to headphone use or job duration.
Area of Science:
- Occupational Health
- Audiology
- Public Health
Background:
- Headphone use is common in customer service roles.
- Concerns exist regarding potential ear infections and hearing loss from prolonged headphone use.
- The impact of occupational headphone use on ear health requires investigation.
Purpose of the Study:
- To determine the prevalence of ear canal infections among customer service representatives using headphones.
- To identify other related ear, nose, and throat (ENT) diseases.
- To assess hearing thresholds and their association with headphone usage.
Main Methods:
- A study was conducted on 136 customer service representatives at Celcom (Malaysia) Sdn. Bhd.
- Participants used headphones throughout their working hours.
- Hearing thresholds were measured using the Amplaid 309 Clinical Audiometer.
Main Results:
- No incidence of external ear canal infection was observed.
- Four cases of chronic middle ear infection and four cases of impacted wax were identified.
- Hearing impairment was found in 25 subjects (21.2%), but not significantly associated with headphone use or duration of service, as high frequencies were unaffected.
Conclusions:
- Occupational headphone use in this cohort did not lead to external ear canal infections.
- While hearing impairment exists, it is not directly attributable to headphone use based on this study's findings.
- Further research may be needed to explore other contributing factors to hearing loss in this population.
Related Concept Videos
01:31Hearing
When we hear a sound, our nervous system is detecting sound waves—pressure waves of mechanical energy traveling through a medium. The frequency of the wave is perceived as pitch, while the amplitude is perceived as loudness.
01:16Anatomy of the Ear
Auditory sensation, commonly called hearing, involves the transformation of sonic waves into neural impulses facilitated by the structures of the auditory organ. The prominent, flesh-like structure on the side of the head, called the auricle, directs sound waves towards the auditory canal. The auricle is often mislabeled as the pinna, a term more aligned with mobile structures like a feline's external ear. The auditory canal penetrates the cranium via the external auditory meatus of the...
01:13The Cochlea
The cochlea is a coiled structure in the inner ear that contains hair cells—the sensory receptors of the auditory system. Sound waves are transmitted to the cochlea by small bones attached to the eardrum called the ossicles, which vibrate the oval window that leads to the inner ear. This causes fluid in the chambers of the cochlea to move, vibrating the basilar membrane.
01:01Perception of Sound Waves
The human ear is not equally sensitive to all frequencies in the audible range. It may perceive sound waves with the same pressure but different frequencies as having different loudness. Moreover, the perception of sound waves depends on the health of an individual's ears, which decays with age. The health of one's ears may also be affected by regular exposure to loud noises.
The pitch of a sound depends on the frequency and the pressure amplitude of the source. Two sounds of the same frequency...
The pitch of a sound depends on the frequency and the pressure amplitude of the source. Two sounds of the same frequency...
01:15Auditory Pathway
Auditory pathways constitute the complex neural circuits responsible for transmitting and interpreting auditory information from the peripheral auditory system to the brain. Sound waves are initially captured by the outer ear, funneled through the ear canal, and reach the tympanic membrane (eardrum). These vibrations are transmitted via the middle ear's ossicles to the inner ear's cochlea.
When viewed cross-sectionally, the cochlea reveals the scala vestibuli and scala tympani flanking the...
When viewed cross-sectionally, the cochlea reveals the scala vestibuli and scala tympani flanking the...
00:53Sound Waves: Interference
Sound waves can be modeled either as longitudinal waves, wherein the molecules of the medium oscillate around an equilibrium position, or as pressure waves. When two identical waves from the same source superimpose on each other, the combination of two crests or two troughs results in amplitude reinforcement known as constructive interference. If two identical waves, that are initially in phase, become out of phase because of different path lengths, the combination of crests with troughs...