Quick answer. Ear discharge is most often caused by an outer-ear infection (swimmer’s ear), a middle-ear infection with a burst eardrum, or softened earwax. The biggest red flag is discharge with severe pain, fever, facial weakness, or clear fluid after a head injury, which needs urgent care.
Ear discharge means any fluid leaking from the ear – watery, cloudy, pus-like, bloodstained or smelly. In Singapore’s warm, humid climate, outer-ear infections (often called swimmer’s ear) are a very common cause, especially after swimming or in those who frequently clean or scratch their ears. Most causes are treatable, but the appearance and accompanying symptoms tell you a lot about how urgently it needs looking at.
This guide walks through the usual causes of ear discharge, what different types of discharge suggest, and the warning signs that mean you should be seen quickly. Whatever the cause, do not insert cotton buds, fingers or any object into the ear, as this can worsen an infection or damage the eardrum.
At a glance
| Discharge type | Likely cause | Typical action |
|---|---|---|
| Cloudy or pus-like with a swollen, painful outer ear | Otitis externa (swimmer's ear) | See a GP or ENT for ear drops |
| Pus that appears as ear pain suddenly eases | Middle-ear infection with a perforated eardrum | Medical review; keep the ear dry |
| Brown, waxy, no pain | Softened or impacted earwax | Do not dig it out; see a clinician to remove |
| Foul-smelling, long-standing discharge | Chronic ear infection | ENT assessment |
| Clear watery fluid after a head injury | Possible skull-base injury | Call 995 or go to A&E |
Red flags: when ear discharge needs urgent care
Most ear discharge can be managed by a GP, but some signs need urgent attention. Seek same-day or emergency care if you have:
- Clear, watery discharge after a head injury – this can be brain fluid leaking through a skull-base fracture. Call 995 or go to A&E, particularly if there is also headache, drowsiness or confusion.
- Facial weakness or drooping on the same side as the discharge – this needs urgent assessment.
- Severe pain, high fever, or redness and swelling spreading behind or around the ear – this can signal a deeper infection and needs prompt review.
- Sudden hearing loss, severe dizziness, or a stiff neck with fever alongside the discharge.
Bloodstained discharge after an injury, or any discharge in someone with diabetes or a weakened immune system, should also be seen promptly, as infections can spread more aggressively in these groups.
Outer-ear infection (otitis externa / swimmer's ear)
This is infection of the ear canal, the tube leading to the eardrum, and it is especially common in Singapore’s humid climate and among swimmers.
- Typical features – an itchy then painful ear, tenderness when you tug the outer ear, and a cloudy or pus-like discharge. The canal may feel blocked.
- Why it happens – trapped moisture, scratching, cotton-bud use or skin conditions disturb the canal’s natural protection, letting bacteria or fungi take hold.
- Treatment – usually medicated ear drops; keeping the ear dry is important during recovery.
Middle-ear infection with a perforated eardrum
A middle-ear infection (otitis media) builds up fluid and pressure behind the eardrum. If the pressure ruptures the eardrum, the trapped pus drains out as discharge.
- A classic pattern – intense ear pain that suddenly eases as discharge appears, because the burst eardrum has relieved the pressure.
- Common in children, often after a cold, but adults get it too.
- Most perforations heal on their own over a few weeks. Keep the ear dry, avoid getting water in it, and see a doctor to confirm healing and treat the infection.
Earwax, foreign bodies and chronic infection
Other causes of discharge include:
- Earwax – softened or impacted wax can appear as a brown, waxy discharge, usually without pain. Never try to dig it out with buds or tools; a clinician can remove it safely.
- Foreign body – more common in children, an object lodged in the canal can cause irritation, infection and discharge.
- Chronic ear infection – long-standing or recurring infection can cause persistent, sometimes foul-smelling discharge. This needs ENT assessment, as ongoing infection can damage hearing structures over time.
What you should not do
Caring for a discharging ear safely matters as much as treating it:
- Do not insert anything into the ear – cotton buds, fingers, tissues or tools can push debris deeper, worsen infection or damage the eardrum.
- Keep the ear dry – avoid getting water in it while showering or swimming, especially if you have or suspect a perforated eardrum.
- Do not use ear drops without advice if the eardrum may be perforated, as some drops are not suitable in that situation.
Gently wipe away discharge from the outer ear only, and let a clinician deal with anything deeper.
Which specialist should you see?
For most ear discharge, a GP is a sensible first stop and can examine the ear, prescribe drops or antibiotics and advise on keeping it dry. If the discharge is recurrent, long-standing, foul-smelling, or comes with hearing loss, you should see an ENT specialist in Singapore, who can examine the canal and eardrum closely, remove wax or foreign bodies safely, and manage chronic ear disease.
Do not wait for an appointment if you have clear watery discharge after a head injury, facial weakness, severe pain with high fever, or swelling spreading behind the ear – call 995 or go to A&E. People with diabetes or a weakened immune system should be seen promptly even for milder discharge, as ear infections can spread more aggressively.
Related guides
- Best ENT Clinics in Singapore — our editorial shortlist
- ENT clinics directory
- Loss of smell
- Watery eyes
- Itchy scalp
- Indigestion
Sources
- NHS – Discharge from the ear
- NHS – Outer ear infection (otitis externa)
- Mayo Clinic – Ear infection (middle ear)
- HealthHub Singapore
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