Why does my ear feel blocked or full?

By The STOTTS. Audiology Team 5 min read Published 24 August 2026 Reviewed 24 August 2026 Reviewed by Ben Lawrenson, Principal Audiologist

That muffled, underwater feeling of a blocked ear is one of the most common reasons people come to see us — and most of the time the cause is simple and easily sorted. Occasionally, though, a blocked ear is worth taking more seriously, so it helps to know which is which.

Common reasons an ear feels blocked

• Ear wax — the most frequent cause, especially if it has been pushed deeper by cotton buds
• A cold or congestion — swelling of the Eustachian tube that equalises pressure behind the eardrum
• An ear infection, which may also bring pain, discharge or a temperature
• Pressure changes, such as after a flight or a heavy cold
• Fluid behind the eardrum, often lingering after an infection
• Occasionally, the start of a hearing change that makes the ear feel dull

Is it wax?

Wax tends to cause a gradual, blocked or muffled feeling, sometimes after using cotton buds (which push wax deeper rather than removing it). The good news is that it is quick to resolve: gentle microsuction earwax removal clears it comfortably, and we always take a proper look inside first so we only treat what is actually there.

When a blocked ear needs attention

• A sudden drop in hearing in the blocked ear — treat this as urgent (see sudden hearing loss)
• Pain, discharge or a fever — this suggests infection and should be seen by your GP
• A blocked feeling that does not clear after a couple of weeks
• A persistent blockage in one ear in an adult, which should always be checked
• Blockage with dizziness or ringing that is troubling you

What we can do

We start by looking inside with a video otoscope, so both of us can see what is going on. If it is wax, microsuction usually clears it on the spot. If your hearing itself seems affected, a full hearing assessment tells us more — and it is complimentary. If it looks like an infection or something for your GP, we will tell you honestly.

A blocked ear is usually nothing more than wax or a lingering cold. The trick is not to assume — a quick look inside settles it, and treats it, in minutes.