Tympanic Membrane Perforation: Causes, Diagnosis and Management
A tympanic membrane perforation is a hole or tear in the eardrum, creating an abnormal communication between the external auditory canal and the middle ear. It may result from trauma, middle-ear infection, barotrauma or a medical procedure. Patients commonly present with ear pain, discharge, bleeding, tinnitus or reduced hearing.
Many uncomplicated perforations heal spontaneously when the ear is kept dry and infection is prevented. However, severe vertigo, marked hearing loss, facial weakness, head injury, penetrating trauma or a persistent perforation may indicate deeper damage and requires urgent ENT assessment.
Never syringe or blindly instrument an ear when a perforation is known or suspected. Keep the ear dry, avoid unprescribed drops, assess hearing and refer urgently if there is severe vertigo, facial weakness, sudden major hearing loss, cerebrospinal-fluid leakage or significant head trauma.
Learning objectives
- Describe the anatomy and functions of the tympanic membrane.
- Differentiate traumatic, infective, pressure-related and iatrogenic perforations.
- Recognise important symptoms, otoscopic findings and danger signs.
- Outline safe examination, hearing tests and investigations.
- Explain conservative treatment, infection control and indications for surgery.
- Provide appropriate nursing care, follow-up and patient education.
Relevant anatomy and functions
The tympanic membrane is a thin, oval membrane separating the external canal from the middle ear. Review the structure of the external, middle and inner ear before studying perforation.
Continuous with the skin of the external auditory canal. Injury may cause bleeding and pain.
Provides strength to the pars tensa. It is deficient in the pars flaccida, which is more vulnerable to retraction.
Continuous with the middle-ear mucosa. A perforation exposes this space to water and microorganisms.
The membrane collects sound energy and transfers vibration through the malleus, incus and stapes to the inner ear. A hole reduces the effective vibrating surface and may cause conductive hearing loss. The degree of loss depends on the size and site of the perforation, middle-ear condition and whether the ossicular chain is intact. Review the physiology of hearing for interpretation.
Causes
| Cause | Examples | Clinical clue |
|---|---|---|
| Direct trauma | Cotton bud, matchstick, hairpin, twig, instrument or penetrating foreign body. | Sudden pain and bleeding after an object entered the canal. |
| Pressure or blast injury | Slap over the ear, explosion, diving, flying or forceful pressure change. | Sudden pain, hearing loss and tinnitus after a pressure event. |
| Head injury | Road-traffic collision, fall, assault or temporal-bone fracture. | Haemotympanum, Battle sign, neurological symptoms or clear otorrhoea. |
| Infection | Acute otitis media or chronic suppurative otitis media. | Pain may improve when pus drains; recurrent or persistent discharge may follow. |
| Iatrogenic | Ear syringing, wax or foreign-body removal, suction, surgery or tympanostomy tube. | Symptoms begin during or after an ear procedure. |
Unsafe attempts at ear foreign-body removal can enlarge a perforation, disrupt the ossicles or injure the inner ear. Stop if the object is deep, the patient cannot cooperate, bleeding obscures the view or the tympanic membrane cannot be assessed safely.
Classification and description
Describe the perforation systematically. This helps communication, follow-up and surgical planning.
- Acute or chronic: acute perforations are recent; chronic perforations fail to close and may be associated with recurrent discharge.
- Traumatic or infective: the mechanism influences contamination, healing and treatment.
- Central: the hole is surrounded by remaining tympanic membrane.
- Marginal: the perforation reaches the annulus; associated epithelial migration raises concern for cholesteatoma.
- Attic: involves the pars flaccida and may be associated with retraction or cholesteatoma.
- Small, medium, large or subtotal: estimate the percentage of membrane involved.
- Dry or discharging: active discharge suggests infection or contamination and affects management.
Record the ear, site, size, shape, edge, presence of blood or discharge, visible middle-ear structures, suspected ossicular injury and hearing findings. A labelled diagram is useful when photography is unavailable.
Clinical presentation
Symptoms
- Sudden ear pain, sometimes followed by relief after an infected middle ear begins to drain.
- Blood-stained, watery, mucoid or purulent ear discharge.
- Reduced hearing, usually conductive.
- Tinnitus, blocked-ear sensation or altered sound quality.
- Vertigo, nausea or imbalance if the inner ear is affected.
- Fever and systemic illness when infection is significant.
Important history
- Onset and mechanism: object insertion, slap, explosion, diving, flying, procedure, infection or head injury.
- Nature and duration of pain, discharge, bleeding, hearing loss, tinnitus and vertigo.
- Previous ear disease, surgery, grommet insertion or recurrent discharge.
- Water entry, swimming, ear drops or traditional preparations used since the event.
- Diabetes, immunosuppression, bleeding disorder and medicines that affect bleeding.
Danger signs requiring urgent referral
- Marked or sudden sensorineural hearing loss.
- Severe or persistent vertigo, nystagmus or inability to walk safely.
- Facial weakness or other cranial-nerve deficit.
- Penetrating injury, suspected ossicular disruption or retained foreign body.
- Clear watery otorrhoea after head trauma, Battle sign, reduced consciousness or other signs of a temporal bone fracture.
- Severe infection, post-auricular swelling, systemic toxicity or suspected intracranial complication.
Examination
Begin with general assessment and vital signs. In trauma, use ABCDE and assess the cervical spine and neurological status before the ear. Follow the structured ENT physical examination.
- Inspect externally: examine the pinna, mastoid, scalp and face for wounds, bruising, swelling or deformity.
- Assess facial movement: look for forehead, eye-closure and mouth weakness.
- Perform gentle otoscopy: use the largest comfortable speculum and avoid touching a fresh injury.
- Do not irrigate: blood or debris should not be flushed through a perforation. If removal is essential, careful low-pressure suction under direct vision is an ENT procedure.
- Test hearing: use whispered voice and Weber/Rinne tests when the patient can cooperate.
- Assess balance and eyes: look for nystagmus and gait instability when vertigo is reported.
A perforation is usually visible on otoscopy. Tiny holes may need otomicroscopy or impedance testing. Pneumatic otoscopy is avoided in a fresh traumatic perforation because applied pressure may worsen pain or inner-ear injury.
Investigations and interpretation
| Investigation | Purpose | Interpretation |
|---|---|---|
| Pure-tone audiometry | Quantifies hearing loss and separates conductive from sensorineural loss. | An air-bone gap supports conductive loss. Bone-conduction loss suggests cochlear or neural injury and needs urgent specialist review. |
| Tympanometry | Assesses membrane and middle-ear function. | A flat tracing with a large measured canal volume supports an open perforation, but the test is not essential when the hole is clearly visible. |
| Ear swab | Identifies organisms in persistent, recurrent or treatment-resistant discharge. | Do not swab every clean acute perforation. Collect under direct vision before changing antimicrobial therapy when clinically indicated. |
| CT temporal bones | Assesses fracture, ossicular injury, foreign body, cholesteatoma or other complications. | Not required for a simple uncomplicated perforation; request when history or examination suggests deeper injury or chronic destructive disease. |
Use the general guide to ordering and interpreting ENT investigations. Whenever possible after trauma, record hearing before and after treatment so the cause of any change is clear.
Management
Immediate care for a simple traumatic perforation
- Reassure the patient that many uncomplicated perforations heal without surgery.
- Provide appropriate oral analgesia according to age, contraindications and local guidance.
- Keep the ear dry. During bathing, place petroleum-jelly-coated cotton at the canal entrance without pushing it deeply.
- Avoid swimming, ear syringing, cotton buds, probing and non-prescribed oils or drops.
- Avoid forceful nose blowing and pressure equalisation until healing is confirmed.
- Arrange review to document closure and recovery of hearing.
Antibiotics and ear drops
Routine antibiotics are not needed for every clean traumatic perforation. Specialist or local-guideline treatment is considered when the injury was contaminated, dirty water entered the ear, purulent discharge develops or there is established middle-ear infection.
When the tympanic membrane is open, use only preparations considered safe for middle-ear exposure. Fluoroquinolone ear drops are commonly selected when topical antimicrobial treatment is indicated. Avoid potentially ototoxic drops containing aminoglycosides or polymyxin unless an ENT specialist specifically directs their use. Check the exact product, allergy history and current Uganda/local guidance.
Infective perforation
Treat the underlying otitis media according to age, severity, chronicity and local antimicrobial guidance. Gentle aural toilet by trained personnel may be needed for persistent discharge so topical treatment can reach the middle ear. Do not syringe the ear.
Follow-up and healing
Most acute traumatic perforations close spontaneously. Review should confirm that pain and discharge have settled, the opening is reducing and hearing is improving. Persistent discharge, recurrent infection or failure to close warrants ENT review. MSD Manual guidance recommends considering surgery when a traumatic perforation persists beyond about two months; local timing may vary with size, cause, infection and specialist assessment.
Procedural and surgical options
- Office patching: an ENT clinician may freshen the edges and apply a paper or biological patch to encourage closure.
- Myringoplasty: repairs the tympanic membrane with a tissue graft.
- Tympanoplasty: repairs the membrane and, when required, middle-ear structures.
- Ossiculoplasty: repairs a disrupted ossicular chain when persistent conductive loss is confirmed.
Before elective repair, control active infection and assess hearing. Surgery is more likely when the perforation is persistent, large, marginal, repeatedly infected, causes important hearing loss or prevents safe water exposure and normal activities.
Complications
Conductive loss may result from the opening or ossicular damage; sensorineural loss suggests inner-ear injury.
Repeated contamination can cause chronic suppurative otitis media, granulation tissue and recurrent pain.
Marginal or attic disease can permit keratinising epithelium to enter the middle ear and progressively erode bone.
Ossicular disruption, perilymph fistula, facial-nerve injury or temporal-bone fracture may accompany severe trauma.
Nursing care and patient education
- Assess pain, discharge, fever, hearing difficulty, vertigo and neurological symptoms.
- Document the amount, colour and odour of discharge without occluding the canal.
- Administer prescribed analgesia and antimicrobials; check that ear drops are suitable for a perforated membrane.
- Teach correct drop administration if prescribed: warm the bottle in the hand, lie with the affected ear upward, instil without contaminating the tip and remain positioned for several minutes.
- Keep the ear dry and demonstrate safe protection during bathing.
- Discourage cotton buds, matchsticks, herbal preparations, oils and self-syringing.
- Reduce fall risk in patients with vertigo and assist mobilisation when needed.
- Arrange ENT and audiology follow-up and reinforce the importance of confirming closure.
- Advise urgent return for worsening pain, fever, increasing or foul discharge, severe dizziness, facial weakness, severe headache or rapidly worsening hearing.
Clinical scenario
A 21-year-old student develops sudden left ear pain, tinnitus and reduced hearing after being slapped. There is a small irregular perforation with a blood-stained edge. He has no vertigo, facial weakness, purulent discharge or neurological abnormality.
Interpretation: this is an uncomplicated traumatic tympanic-membrane perforation. Document the lesion and bedside hearing findings, provide analgesia and dry-ear precautions, avoid syringing and routine antibiotic drops, and arrange follow-up with audiometry. Urgent ENT assessment is required if marked hearing loss, vertigo, facial weakness, infection or other danger signs develop.
Key examination points
- A tympanic-membrane perforation is a hole connecting the ear canal to the middle ear.
- Common causes are infection, direct trauma, blast or pressure injury, head trauma and procedures.
- Symptoms include pain, discharge, bleeding, tinnitus and conductive hearing loss.
- Diagnose by careful otoscopy and assess hearing with bedside tests and audiometry.
- Do not irrigate, probe or use unprescribed ear drops in a perforated ear.
- Most uncomplicated acute perforations heal with dry-ear precautions and follow-up.
- Severe vertigo, facial weakness, major hearing loss, penetrating injury or head-trauma signs need urgent referral.
- Persistent perforation or hearing loss may require patching, myringoplasty, tympanoplasty or ossicular repair.
References and further reading
- MSD Manual Professional: Traumatic perforation of the tympanic membrane.
- NHS: Perforated eardrum.
- NCBI Bookshelf: Tympanic membrane perforation.
- Royal Victorian Eye and Ear Hospital: Traumatic tympanic membrane perforation clinical practice guideline.
- NHS England GIRFT: Adult ENT referral guidelines.
For education only. Follow current Uganda Clinical Guidelines, local antimicrobial guidance and senior ENT advice for individual patients.
