Can a head injury cause hearing loss?

A head injury can affect hearing in several ways, depending on which part of the ear or hearing pathway is involved. Trauma from a fall, car accident, sporting knock or blast can damage structures anywhere from the eardrum to the hearing centres of the brain. Any new hearing change, ringing or dizziness after a head injury should be checked promptly.

How can a head injury affect hearing?

The hearing system has many delicate components, and injury can involve any of them:

• Eardrum: a perforation can follow a direct blow, a slap to the ear or a nearby blast.
• Middle ear: the three small hearing bones can be disrupted or dislocated.
• Inner ear: the cochlea can be damaged by the force of a knock or by a skull fracture.
• Nerve pathways: the hearing nerve or the brain regions that process sound can be affected.

Loud blasts can also cause noise-induced damage at the same time as physical trauma, which is why hearing changes after an explosion are taken seriously.

What symptoms might appear?

Hearing-related effects after a head injury can include reduced hearing in one or both ears, tinnitus (ringing or buzzing), a blocked feeling, dizziness or balance problems, and sensitivity to sound. Some effects appear immediately, while others emerge over the following days. Because the inner ear also governs balance, hearing and dizziness symptoms often occur together.

Is hearing loss after a head injury permanent?

It varies. Some causes, such as a small eardrum perforation, may settle over time or with medical treatment. Others, particularly inner-ear or nerve damage, can be long-lasting. The outcome depends on the type and severity of the injury, so it is not possible to predict without a proper assessment. This is why medical review matters rather than waiting to see what happens.

How is hearing checked after a head injury?

Once any urgent medical needs have been addressed, a hearing assessment builds a clear picture of what has changed. Depending on your symptoms, this may include:

• Ear examination: checking the ear canal and eardrum for a perforation or blood.
• Pure-tone audiometry: mapping the softest sounds you can hear across different pitches.
• Tympanometry: checking how the eardrum and middle ear are working.
• Speech testing: measuring how clearly you understand words, including in background noise.

Where balance or dizziness is involved, further assessment or referral may be suggested, since the inner ear governs balance as well as hearing. Testing is sometimes repeated over time, because some effects settle while others persist. The results help your GP or specialist decide on monitoring, medical care or hearing support, and they provide a baseline to compare against later.

What should you do?

Any significant head injury needs urgent medical attention, especially if there is loss of consciousness, worsening headache, fluid or bleeding from the ear, or sudden hearing loss. For these, see a doctor or emergency department without delay. Sudden hearing loss in particular is treated as time-sensitive.

Once you are medically stable, a hearing assessment can measure exactly how your hearing has been affected and help guide next steps, which may include medical referral, monitoring or hearing support. In Queensland, hearing loss linked to a workplace incident may also involve WorkCover, and it is worth keeping records. At Hearing Help in Newport, our audiologist can carry out a detailed assessment and work alongside your GP or specialist. If you have noticed any change in your hearing following a knock to the head, please have it checked rather than assuming it will simply resolve.