Understanding Your Hearing Loss
Hearing loss is a reduced ability to hear sounds at the volumes most people hear them, measured in decibels (dB) across pitches (Hz) and plotted on a chart called an audiogram. It usually creeps in gradually — which is exactly why a proper test matters. This guide explains how we measure hearing, the common types and causes of loss, why waiting makes things harder, and what your results actually mean.
You are far from alone: the World Health Organization’s World Report on Hearing (2021) estimates that 1.5 billion people live with some degree of hearing loss today, rising to nearly 2.5 billion — 1 in 4 people — by 2050. Yet it remains one of the most under-treated conditions there is, largely because it arrives so quietly.
How an audiogram works
During your test, the audiologist plays tones at different pitches and asks you to respond to the quietest ones you can detect. The result is your audiogram:
- Across the top: frequency (Hz) — pitch, from low (250 Hz, a rumble) to high (8,000 Hz, a bird chirp). The consonants that make speech intelligible — s, f, th, sh — live on the high-frequency right side.
- Down the side: hearing level (dB HL) — how loud a sound must be before you hear it. The lower a point sits on the chart, the harder that pitch is for you to hear.
- Circles and crosses — right ear and left ear, measured separately.
A full assessment adds speech testing (repeating words at different volumes), because detecting beeps and understanding words are different skills — and it’s the second one you actually live with.
Degrees of hearing loss
| Threshold | Degree | What it feels like |
|---|---|---|
| 0–20 dB | Normal | No difficulty in ordinary listening |
| 21–40 dB | Mild | Soft speech and conversation in noise become hard |
| 41–55 dB | Moderate | You ask people to repeat themselves; TV volume creeps up |
| 56–70 dB | Moderately severe | Loud, clear speech needed; group talk is exhausting |
| 71–90 dB | Severe | Conversation is very difficult without amplification |
| 91+ dB | Profound | Even loud sounds are barely detected |
Most people who visit us have high-frequency loss: vowels come through, the crisp consonants don’t. That’s why the classic complaint is “I can hear, but I can’t understand.”
The three types of hearing loss
- Sensorineural — damage to the inner ear’s hair cells or hearing nerve. Permanent, and by far the most common; hearing aids are the standard, highly effective treatment.
- Conductive — sound is physically blocked on its way in: wax, fluid behind the eardrum, infection, or middle-ear problems. Often medically or surgically treatable, which is why testing matters before buying anything.
- Mixed — both at once.
What causes it — and what that means for you
Age (presbycusis). The inner ear’s sensory cells wear gradually, high pitches first. It’s the most common cause worldwide and the reason annual checks make sense after 50 — the change is too slow to notice from inside.
Noise. Traffic, generators, machinery, loud workplaces, years of earphones at high volume. Noise-induced loss is permanent but entirely preventable, which is why factories run hearing-conservation programs and why a baseline test is smart if your work is loud.
Earwax and infections. The “good news” causes — a blocked canal or fluid behind the eardrum can mimic serious loss and is usually treatable in one visit. This is also why an honest clinic examines your ears before talking about hearing aids.
Medications and illness. Some medicines are hard on hearing (your audiologist will ask what you take), and conditions like diabetes and hypertension are associated with poorer hearing health — one more reason the test starts with a conversation, not a beep.
Why waiting quietly makes it worse
Hearing loss isn’t just about the ears — it’s about what the brain does with sound. When parts of the sound spectrum go missing for years, the brain’s listening pathways get less practice at using them; audiologists call this auditory deprivation. People who wait a decade before treating loss often find hearing aids take longer to adapt to than people who acted early, because the brain has to relearn sounds it stopped processing.
There’s a social spiral too, and we see it weekly: conversations become effortful → group settings become embarrassing → invitations get declined → isolation grows. Research links untreated hearing loss with social withdrawal and faster cognitive decline in older adults. None of this is inevitable — it’s simply the strongest argument for testing early, while treatment is easiest.
Tinnitus: the ringing that often comes along
Most tinnitus (ringing, buzzing, hissing) travels together with some degree of hearing loss — the brain “turns up the gain” on a quiet input and you hear the static. That’s why tinnitus care starts with an audiogram, and why treating the hearing loss often quiets the ringing.
What your results mean day to day
A hearing test isn’t a pass/fail exam — it’s a map. It tells us which pitches you’re missing, in which ear, and by how much, so a hearing aid can be programmed to amplify only what you need instead of making everything louder. At every Let’s Hear clinic your audiogram is explained back to you in plain words — in Kannada, Tulu, Tamil, Malayalam or English depending on your branch — and you keep the report. If aids would help, the honest price bands run from ₹15,000 to ₹4,00,000+ per ear, and every fitting includes a 7-day trial.
If the people around you seem to mumble, or the TV keeps getting louder, that is the audiogram telling you something. Start with the free 5-minute online check from your phone, or book the free 30-minute clinic test at any of our 8 clinics — no pressure, no jargon.
Source
- World Health Organization, World Report on Hearing (2021) — global prevalence and 2050 projection figures cited above.