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Why is my hearing muffled?

If your hearing sounds muffled, or if it feels like there’s ‘cotton in your ears’, there’s likely a good explanation. Muffled hearing can come about gradually or suddenly, depending on the underlying problem. It may also occur in one ear or both ears. There are often common reasons for muffled hearing and it is not always an indicator that you are experiencing hearing loss.

Remember though that there is no substitute for seeking professional advice. We can help connect you to a local audiologist – just head to this short form.

Common causes of muffled hearing

Your ears are plugged with wax

Most likely you will start to notice your hearing becoming more and more muffled over time as the wax begins to build. Avoid poking anything inside your ear, including Q-tips or cotton buds. Instead, clean your ears simply by using a washcloth. If you think you have a build-up of excess wax, speak to a pharmacist or see your audiologist.

You have asymmetric hearing loss

Asymmetric hearing loss means your hearing is worse in one ear than the other. It might feel as though the sound is muffled in the poorer-hearing ear. You may notice asymmetric hearing loss if you hold the phone up to each ear, and find it’s clearer in the better ear.

The likelihood is that it’s something untoward that can be treated easily, so book a visit to your audiologist to get your hearing checked out.

You have an ear infection

If you have a middle ear infection – called otitis media – your ear may be infected by a virus, fungus or bacterial infection. This will likely temporarily affect your hearing and may make your hearing sound muffled in the affected ear. Ear infections often clear on their own, but if you still have symptoms after five days, see a doctor and check if you need treatment to resolve the infection.

hearing test

You have eustachian tube dysfunction

This occurs when there’s a difference between air pressure inside and outside the body, like when your ears pop during a flight, for example.

You have high-frequency hearing loss

When you have high-frequency hearing loss you have difficulty hearing high-pitched sounds. This includes consonant sounds of speech more than vowel sounds.

With high-frequency hearing loss, you may be able to hear but not understand what people are saying. That’s because when you can’t hear the consonants of speech, the speaker sounds like they’re mumbling or not speaking clearly.

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Are people mumbling or is it me?

We all experience a range of sounds and noises in our everyday lives, from a knock at the door, to sirens and alarms going off.

Plenty of people hear most things perfectly clear, but struggle to hear or understand speech, whether it’s face-to-face conversations, over the telephone, or dialogue in a TV show.

People are mumbling if…

Some people report that it feels as though people are mumbling – and one reason could be that people around you are mumbling.

That’s probably the case if other people in the room are also struggling to hear, if you still have problems understanding someone when the room is otherwise silent, or – for example – if you can hear the dialogue when you switch the TV channel and watch a different program.

You may have mild hearing loss if…

However, there are some instances where trouble hearing or understanding speech indicates you might be experiencing some hearing loss. These include:

  • Having to ask people to repeat themselves or talk more slowly
  • People’s voices sound muffled
  • Having to turn the volume up on the TV or radio more and more
  • Struggling to distinguish consonant sounds
  • Finding it consistently hard using the phone
  • Avoiding social situations or becoming increasingly isolated because you find it hard to keep up with conversations
  • Getting tired or stressed, having to focus more while listening

It’s not necessarily anything to worry about, and a simple hearing test could identify any problems early.

Written by:

Allie Anderson is a health writer and editor with many years of experience creating accurate, evidence-based content for consumer and professional audiences. Allie is passionate about making medical information as accessible as possible, empowering people to make informed choices about their health and well-being.


Allie holds a first-class honours degree in Linguistics from University College London, a Russell Group institution that’s ranked in the top 10 universities globally. She trained as a journalist with the UK’s NCTJ (National Council for the Training of Journalists) and after working as a news reporter for local newspapers and B2B titles, began writing about health.


Published in medical journals, peer-reviewed magazines for healthcare professionals and a broad range of consumer titles, Allie has covered all manner of health and medical topics throughout her career, most recently focusing on hearing health and hearing loss.


Allie has conducted in-depth research into the mechanisms underpinning hearing and has developed an understanding of the nuanced impact hearing loss can have on individuals and their loved ones.

Reviewed by:
Audiologist Ana Paula de Lima Rodrigues (Audiology and Speech Therapy BSc) is extremely passionate about providing exceptional care, advice and support for people with hearing loss. Ana trained at the University of Vale do Itajai in Brazil in 2001 and currently works in London where she is registered with The Health and Care Professions Council (HCPC).
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