What is Hearing Loss?

Hearing loss is the partial or complete inability to hear sounds. It can affect people of all ages and may range from mild to profound in severity. This condition impacts millions worldwide and can significantly interfere with communication and understanding speech in everyday situations.

With timely diagnosis and expert support from trusted centers like San Hearing & Speech Clinic, hearing loss can be effectively managed to improve quality of life.

Hearing Loss vs. Deafness

Hearing loss is defined when hearing thresholds exceed the normal range of 20 dB in both ears, varying from mild to profound levels.

Deafness refers to a condition where a person has significant difficulty understanding speech, even with amplification through hearing devices.

Types of Hearing Loss

Hearing loss is broadly classified into three categories:

• Conductive Hearing Loss: Occurs in the outer or middle ear when sound cannot reach the inner ear. Common in children due to infections or blockages.
• Sensorineural Hearing Loss: Affects the inner ear and is often caused by aging, noise exposure, medications, or genetic factors.
• Mixed Hearing Loss: A combination of both conductive and sensorineural hearing loss.

Categories of Hearing Loss

Hearing loss can also be categorized based on various factors:

• Prelingual vs. Postlingual: Before or after language development
• Unilateral vs. Bilateral: One ear or both ears
• Symmetrical vs. Asymmetrical: Same or different severity in both ears
• Progressive vs. Sudden: Gradual or rapid onset
• Fluctuating vs. Stable: Changing or constant hearing levels
• Congenital vs. Acquired: Present at birth or developed later

Degree of Hearing Loss

Hearing loss is measured in decibels (dBHL):

• Mild (21–40 dB): Difficulty hearing soft speech
• Moderate (41–55 dB): Trouble understanding conversations
• Moderately Severe (56–70 dB): Requires louder speech
• Severe (71–90 dB): Significant difficulty without amplification
• Profound (91+ dB): Very limited or no hearing ability

Common Symptoms of Hearing Loss

• Frequently asking others to repeat themselves
• Difficulty following conversations, especially in noisy settings
• Perception that others are mumbling
• Increasing TV or music volume
• Trouble hearing high-pitched sounds

Symptoms in Babies and Children

• No reaction to loud sounds
• Delayed speech development
• Lack of response to name
• Difficulty following instructions
• Preference for high TV volume

Causes of Hearing Loss

• Genetic conditions or birth-related factors
• Aging (presbycusis)
• Middle ear problems or infections
• Ototoxic medications
• Exposure to loud noise
• Head injuries or trauma
• Long-term noise exposure

How is Hearing Loss Diagnosed?

Diagnosis typically includes:

• Physical Examination: Checking for earwax, infections, or structural issues
• Screening Tests: Basic sound response checks
• Diagnostic Tests: Detailed audiometric evaluations using earphones and sound signals

Common Hearing Tests

• Otoscopic evaluation
• Pure tone audiometry
• Speech audiometry
• Tympanometry
• Play audiometry (for children)
• BERA/ABR
• OAE testing

Hearing Loss Treatment

• Conductive Hearing Loss: Medication or surgery
• Sensorineural Hearing Loss: Hearing aids or cochlear implants
• Mixed Hearing Loss: Combination of medical treatment and hearing aids

At San Hearing & Speech Clinic, patients receive personalized treatment plans, including advanced hearing aids and expert audiological care.

Factors That Lead to Hearing Loss

• Aging
• Prolonged exposure to loud noise
• Genetic conditions
• Long-term use of certain medications

How Can You Prevent Hearing Loss?

• Avoid prolonged exposure to loud sounds
• Use ear protection in noisy environments
• Use medications cautiously
• Maintain ear hygiene
• Follow a healthy lifestyle
• Get regular hearing check-ups
• Seek early intervention for children

Preparing for Your Appointment

During an audiological evaluation, you can expect:

• Discussion about your lifestyle and hearing concerns
• Review of medical history
• Ear examination
• Detailed hearing tests
• Guidance on results and next steps

Final Thoughts

Understanding hearing loss is the first step toward better hearing health. Early diagnosis and appropriate treatment can significantly improve communication, confidence, and overall well-being.

With expert care and advanced solutions available at San Hearing & Speech Clinic, individuals can take control of their hearing health and enjoy a better quality of life.