Earaches After Swimming: Why Water in the Ear Causes Problems

The external auditory canal is a very sensitive area lined with a thin layer of skin. This skin is protected by earwax, which serves an important function. It keeps the skin supple, protects against drying out, and also has a mild antibacterial effect.

When water enters the ear canal while swimming and remains there, this balance is disrupted. The skin absorbs moisture, becomes softer, and loses its resilience. At the same time, the protective layer of earwax can be partially washed away or altered.

A key factor is the moist environment that results. In this environment, germs can multiply much more quickly. These include both bacteria and fungi that are normally present on the skin but do not cause problems under normal conditions. However, the moisture allows them to spread more readily and trigger symptoms.

When the skin is softened, its protective barrier is compromised, and there are many germs present, inflammation can develop in the ear canal. This is called swimmer’s ear. It occurs particularly after prolonged contact with water. This is because the longer water remains in the ear, the greater the risk, as the skin stays moist and the natural protective barrier becomes more susceptible to irritation. In addition, small, often unnoticed skin injuries can play a role. These are caused, for example, by scratching or by mechanical irritation such as cotton swabs.

Such minor injuries are enough to allow germs to penetrate and multiply more easily. This can cause the irritation to worsen and develop into an infection.

Symptoms usually develop gradually and are not always taken seriously right away. Initially, an unusual sensation in the ear is often the main symptom.

Typical signs include:

• Pressure or a feeling of a “stuffy ear”
• slightly impaired hearing
• Itching in the ear canal
• Pain when touching or moving the outer ear

As the condition progresses, the symptoms may worsen. The pain then occurs not only when the ear is touched, but also at rest. In some cases, the ear canal swells, which further impairs hearing.

Fluid discharge may also occur. A clear warning sign is when the ear becomes increasingly sensitive and even light touch triggers severe pain. This suggests that the inflammation is already advanced.

People often try to actively remove water from their ear. They use cotton swabs or other objects to do so. However, this only makes the situation worse. Instead of removing the water, it is often pushed deeper into the ear canal. At the same time, the sensitive skin is irritated or even injured. This further weakens the ear’s natural protective function.

Removing earwax is also problematic, as it serves as an important protective barrier. Without this protective layer, germs can settle more easily. Another issue is that the ear often doesn’t get enough time to dry. If moisture remains, the strain on the skin is prolonged and the discomfort can worsen.

Not every symptom after swimming is immediately cause for concern. Mild irritation may subside on its own. However, there are situations that warrant closer attention.

These include:

• persistent or worsening pain
• a significant decline in hearing
• severe tenderness in the ear
• fluid leakage
• Symptoms lasting several days

In such cases, it may be advisable to have the cause investigated. Especially if the symptoms recur after swimming, there may be increased sensitivity in the ear canal.

To avoid ear pain after swimming, simple measures can help:

• Let your ears dry gently after swimming
• Avoid prolonged moisture in the ear
• Avoid harsh cleaning methods
• Protect sensitive ears, for example by taking appropriate precautions while swimming

Ear pain after swimming is often not caused by the water itself, but by the changes it triggers in the ear canal. The skin’s impaired protective function, combined with moisture and germs, can lead to irritation and inflammation.

What may seem harmless at first can gradually worsen. If you recognize the typical signs and act early, you can better assess the situation and avoid unnecessary complications. If symptoms persist, an examination by an ENT specialist may be advisable.