A cat that stops answering its name at 12 is usually not stubborn. It is losing the top of its hearing range first, and the change spreads over 6 to 18 months before an owner notices. Three signal classes separate hearing loss from attitude, and a 2-knock floor tap replaces most of the shouting.
The whole plan runs on 5 numbers: 3 tests, 2 knocks, 1 session a week, 5 minutes per session, and an exam inside 48 hours for any sudden change. Presbycusis is gradual and permanent; ear disease is often reversible, so the first job is telling them apart. Background sits in the hearing loss baseline.
Signal 1: the name that stops working
Call the cat from 2 m in a quiet room and count to 5. A cat that no longer turns at 2 m but still reacts to the fridge door at 8 m is losing speech frequencies, roughly 500 Hz to 4 kHz, and keeping the low rumble it feels through the floor. Run the test at 3 distances, 1 m, 3 m and 6 m, once in the morning and once in the evening, because a senior cat hears worse when tired.
Write the result down. A cat that responds at 1 m and 3 m but not at 6 m has mild loss; one that fails at 1 m has lost most of the useful range and needs the household rebuilt rather than a louder voice. Repeat the same 3 distances on 3 different days before you believe the pattern.
Signal 2: a sound it cannot place
Drop a key ring 1 m behind the cat on a hard floor and time the head turn. A hearing cat turns in under 0.5 seconds and looks at the right spot. A cat with one-sided loss turns the wrong way, overshoots by 30 to 40 degrees, or turns late by 1 to 2 seconds. One-sided loss is the one that matters clinically: it usually means otitis, a polyp or a mass on that side, not old age, and it deserves an exam within 7 days.
Signal 3: sleep that got deeper
A cat that sleeps through a dropped pan at 2 m, about 60 dB, but startles when the mattress moves has lost the high frequencies above 20 kHz that wake a cat first. Deep sleep is the last signal owners report and the most dangerous: a deaf cat asleep at the top of a stair gets stepped on. Move the bed within 1 week of noticing it.
Use 2 channels, not volume
Channel 1 is vibration. Knock the floor twice with a flat hand, wait 3 seconds, knock twice again. Two knocks are the entire vocabulary, and the repetition is what teaches it. Do it before feeding, before opening a door, before lifting the cat, so the tap predicts something within 2 seconds.
Channel 2 is light. Flick a flashlight twice across the wall at 2 m, or switch the room light off and on once; that reads from 8 m and does not startle. Add hand signals at 20 to 30 cm from the face: flat palm for stay, two fingers for come, a point at the bowl. Hold the same 3 signals for 4 weeks before adding a fourth.
Then change 3 habits. Never approach a sleeping senior from behind; walk into its line of sight. Keep the cat indoors, since a deaf cat cannot hear a car at 5 m, and put a bell on the collar so you can find it in 10 seconds. Keep bowls and litter in the same 2 places: a deaf cat navigates by memory and furniture layout, not sound.
One 5-minute session a week
Same day each week, same room, a reward worth about 3 kcal. Three cues, 10 repetitions each, 5 minutes total, then stop. A cat that gets 8 of 10 right has the cue; under 6 means the signal is too subtle, so knock harder or brighten the light.
Most cats pick up a 2-knock recall in 2 to 3 weeks and keep it for months with 1 refresher session a week. Two 5-minute sessions beat one 20-minute session, because a senior cat's attention fades after about 6 minutes. Skip sessions on days above 28 degrees C, when a cat will not work for food.
Scoring table for the 3 tests
| Test | Distance | Normal | Suspect deafness | Action |
|---|---|---|---|---|
| Name call | 1 m, 3 m, 6 m | Turns within 1-2 s | No turn at 3 m | Retest 3 days |
| Key ring drop | 1 m behind | Turn under 0.5 s, correct side | Wrong way, 30-40 degrees off | Exam in 7 days |
| Clatter in sleep | 2 m, 60 dB | Wakes in 1-2 s | No wake, startles on touch | Move bed in 1 week |
| Floor tap | 2 m, 2 knocks | Looks down then up in 3 s | Nothing after 10 trials | Switch to light cue |
When it is the ear, not the age
Run 4 checks every week. Wax color: dark brown or black is not normal. Smell: yeast reads sweet, bacteria reads sharp. Head position: a tilt of 15 degrees or more held for 2 days. Scratching: 1 ear, more than 10 times an hour. Any 2 of the 4 mean an exam rather than a louder voice, because ear disease can be treated and presbycusis cannot, and both can sit in the same 13-year-old cat.
Ear medication is chosen from cytology, so the drug class, antifungal, antibiotic or a combination, arrives with a prescription. Never use a leftover bottle from another cat and never instil anything into an ear that might have a ruptured drum.
The vet line
Same day for deafness that appeared in 24 to 48 hours, a head tilt with eyes flicking side to side, pain when the ear is touched, pus or blood in the canal, or a cat walking in circles. Within 7 days for a slow decline plus failure on the 1 m test. Book inside 4 weeks for a gradual 6 to 18 month decline with no other signs: blood pressure, thyroid and otoscopy are the 3 checks worth the money.
Weight and cost are the companion problems
A deaf cat cannot hear the food bag or the other cat at the bowl, so it eats whatever sits in front of it and stops moving toward sound. Weigh every 2 weeks; a 200 g loss in a month, or 5% of body weight in 8 weeks, changes the diet plan. The method is in the weight log guide.
Cost is why owners delay. A workup with otoscopy, cytology, blood pressure and thyroid has a wide range, and the cost breakdown is worth reading before the appointment so you can approve the right 3 tests instead of all 9.
Your first 14 days
- Run the 3 tests at 1 m, 3 m and 6 m, twice, and write the results down.
- Knock the floor twice before every meal for 14 days.
- Move the bed off the walking path and block the stair top.
- Book 1 exam if any 2 of the 4 ear checks are abnormal.
- Weigh the cat and start a 2-week log at the same time of day.
Frequently asked
How do I tell age-related deafness from an ear infection in a senior cat?
Age-related loss is gradual over 6 to 18 months, affects both ears and hits high frequencies first, so the cat stops turning at 3 m but still feels floor vibration. Ear disease usually comes with 1-sided signs: a head tilt of 15 degrees or more, dark wax, a sharp smell, or scratching that ear more than 10 times an hour. Any 2 of those 4 checks mean an exam within 7 days rather than a louder voice.
Does the 2-knock floor tap really work on a deaf cat?
It works because a deaf cat still feels vibration through the floor and through its paws, and 2 knocks are simple enough to pair with one outcome. Knock twice with a flat hand, wait 3 seconds, knock twice again, and always follow within 2 seconds with food or a door opening. Most cats learn it in 2 to 3 weeks with one 5-minute session a week of 10 repetitions.
When does a senior cat with hearing loss need a vet visit?
Same day for deafness that appeared within 24 to 48 hours, a head tilt with flicking eyes, pain on touching the ear, or discharge. Within 7 days if the cat fails the 1 m name test or turns the wrong way to a sound behind it. A slow decline with no other signs can wait for a routine exam inside 4 weeks with blood pressure, thyroid and otoscopy.