Noticing that one ear isn't quite pulling its weight can be unsettling. Perhaps the phone sounds muffled when you hold it on one side, or in a busy pub you find yourself turning your "good" ear towards whoever is talking. Hearing loss in just one ear is more common than people think, and the causes range from the completely harmless to the genuinely urgent.
Here is a plain, honest guide to what might be going on, and when a one-sided change is a reason to act quickly rather than wait.
Why does losing hearing in one ear feel so different?
We rely on two ears working together to judge where a sound is coming from and to pick a single voice out of background noise. When one ear drops off, that teamwork suffers. You might find it harder to tell which direction a voice or a car is coming from, or notice that group conversations feel like harder work than they used to. Many people instinctively start seating themselves so their better ear faces the room.
Because your other ear compensates so well in quiet, one-sided loss can creep up gradually and go unnoticed until you are somewhere noisy. That is worth knowing, because a sudden one-sided change is a very different matter, as we will come to.
What are the common causes of hearing loss in one ear?
Most of the time, one-sided hearing loss has a straightforward and treatable explanation. The usual suspects include:
- Earwax build-up. This is the single most common reason one ear goes dull, and it is easily sorted. Wax naturally forms more in some ears than others, so it is normal for one side to block while the other stays clear. We remove wax by microsuction, a gentle method that uses gentle suction rather than water.
- An infection or fluid behind the eardrum. After a heavy cold, chest infection or bout of hay fever, fluid can sit behind the eardrum and leave one ear feeling full and muffled for a few weeks.
- A blocked Eustachian tube. This is the small tube that equalises pressure in the ear. When it does not clear properly, one ear can feel bunged up, especially after flying or a cold.
- Age-related or noise-related loss. These usually affect both ears, but not always evenly, so one side can seem noticeably weaker.
- A perforated eardrum. Sometimes following an infection or injury.
You can learn more about the different types on our hearing loss page. Keeping ears healthy day to day also helps, and our ear health advice covers the sensible basics like leaving cotton buds well alone.
When should hearing loss in one ear worry you?
Here is the part we want every reader to take seriously. Sudden hearing loss in one ear, coming on over a few hours or up to about three days with no obvious cause like wax, is a medical emergency. It is called sudden sensorineural hearing loss, and it is treated best within days of it starting.
If this happens to you, do not wait for a routine appointment and do not simply book in with us instead. Contact your GP the same day, call NHS 111, or go to A&E if you cannot get seen quickly. Prompt treatment, often with steroids, gives the best chance of recovery, and every day counts.
You should also see your GP if you notice one-sided hearing loss that is persistent and unexplained, meaning it has not cleared and there is no obvious wax. A clear difference between your two ears, with no simple reason, is something a doctor will want to look into, sometimes with a referral. This is not cause for panic, but it does deserve a proper check.
Other signs that warrant prompt medical advice alongside one-sided hearing changes include:
- Sudden dizziness or a spinning sensation (vertigo)
- Ringing or noise (tinnitus) in one ear only
- Pain, discharge or bleeding from the ear
- Weakness or drooping on one side of the face
How can we help find out what is going on?
For the everyday causes, we are well placed to help. At the clinic we can look inside your ear, tell you whether wax is the culprit, and carry out a full online hearing check to measure exactly how each ear is performing. That gives you a clear picture rather than guesswork.
If it turns out to be wax, we can usually remove it there and then with microsuction and restore your hearing on the spot. If your results point to something that needs a GP or an ear specialist, we will tell you plainly and help you take the next step. And if it is age-related loss that would benefit from a hearing aid, we fit all seven leading brands with no bias towards any one of them.
The important thing is not to assume one quiet ear is nothing, nor to lie awake fearing the worst. A proper look and a proper test usually settle it quickly.
If one ear has been sounding dull and you would like it checked properly, book a free hearing test with our friendly Wickersley team, or call us on 01709 437250. If your hearing dropped suddenly, please seek same-day medical help first.
