Nasal foreign body

01OverviewDefinition, clinical context and the essential points that orientate the chapter.

Nasal foreign bodies most often occur in children, but also occur in adults with cognitive impairment or learning disability. Common objects include beads, pieces of toys, paper and food. The presentation may be immediate after a witnessed insertion or delayed with persistent discharge, bleeding, odour or obstruction. Organic material can swell and provoke inflammation, making later removal more difficult.

The key decisions concern material, visibility, cooperation and clinician competence. An uncomplicated anterior inert object can sometimes be removed in a suitable clinical setting. A battery, paired magnets, an inaccessible object or a distressed patient changes that plan. NHS Greater Glasgow and Clyde advises immediate emergency ENT review for a suspected nasal button battery and emergency referral for other nasal objects to be reviewed within twenty-four to forty-eight hours. Technical removal guidance from paediatric emergency services supplements that UK referral framework; it does not justify repeated attempts outside the clinician's skills or facilities.

Key points

Unilateral offensive or blood-stained nasal discharge in a young child should prompt consideration of a retained object.
Insertion is often unwitnessed; a caregiver's lack of knowledge does not exclude a foreign body.
Identify the object, position and likely material before choosing a removal technique.
Button batteries and magnets across the septum have a different urgency from an uncomplicated inert bead.
A calm, well-prepared initial attempt by an appropriately skilled clinician offers the best chance of avoiding repeated trauma.
Stop after an unsuccessful initial attempt and seek ENT advice rather than repeatedly pushing instruments into the nose.
Re-examine after removal to check for residual material, another object and mucosal injury.

02AetiologyUnderlying causes, associations and risk factors, with why each one matters.

Exploration and small objects

Young children may insert beads, toy parts, paper or food during play. The history is often incomplete, so unexplained unilateral symptoms can be more informative than a witnessed event.

High-risk retained materials

Button batteries and magnets carry specific tissue injury risks. Organic material can enlarge and inflame surrounding mucosa, increasing difficulty and pain when removal is delayed.

03PathophysiologyThe causal sequence from the underlying abnormality to symptoms and harm.

1
Local obstruction and inflammation
A retained object blocks airflow and clearance of secretions. Mucosal irritation and secondary inflammation produce the characteristic unilateral discharge, discomfort and occasional bleeding.
2
Battery related injury
A retained battery can generate a damaging local chemical environment and tissue necrosis. A child who appears comfortable may still have evolving injury, so symptoms do not determine safe delay.
3
Pressure and procedural injury
Magnets on opposite sides of the septum compress tissue and impair its viability. Repeated extraction attempts can add trauma or push another object posteriorly towards the airway.

04Clinical features and red flagsSymptoms, examination findings, patterns of presentation and time-critical warnings.

Delayed unilateral discharge

Ask about persistent foul-smelling or blood-stained discharge from one nostril, mouth breathing, local discomfort and recurrent apparent rhinitis. The child may not report insertion, and an object can remain hidden behind secretions.

Material identification

Ask what objects or battery-powered toys were accessible and whether more than one magnet could be missing. A smooth metallic disc must be treated as a possible battery until identified; injury risk cannot be judged from apparent comfort alone.

Safe visual examination

Use good lighting and inspect gently with suitable equipment, maintaining a stable position. Assess the nostril without blind probing; bleeding caused by examination can obscure the object and make definitive removal harder.

Airway and associated injury

Cough, choking, stridor or breathing difficulty raises possible displacement or another airway foreign body and requires immediate assessment. Significant pain, fever, spreading swelling or a very unwell child suggests complications requiring escalation.

Red flags requiring action

A suspected button battery in the nose requires emergency ENT review and removal as soon as possible.
Paired magnets across the septum, significant bleeding, respiratory symptoms or a deteriorating child require urgent specialist assessment.

05InvestigationsWhat to request, why it matters and how to interpret it.

Investigation order

Read from the initial assessment onwards. Tests may run in parallel in urgent care; first-line, preferred, confirmatory, definitive and gold-standard labels appear only when the chapter explicitly states them.

01
Direct illuminated nasal inspectionFirst step
Why
Locate the object and establish whether removal is feasible.
Interpretation and limitations
Many foreign bodies are identified clinically without imaging. Record side, position, visible material and surrounding trauma; an obscured posterior object should not be pursued with blind instruments.
02
Targeted radiography when a battery or magnets are suspected
Why
Identify a potentially dangerous radiopaque object that cannot be seen.
Interpretation and limitations
Imaging may help when suspicion remains despite an incomplete view, arranged without delaying emergency ENT involvement. A radiograph is not routinely needed for every clearly visible inert object.
03
ENT examination or endoscopy
Why
Assess a hidden object or unsuccessful initial removal.
Interpretation and limitations
Specialist examination can locate deeper material and plan controlled extraction. Endoscopy may be required when discharge persists despite an apparently normal anterior examination.
04
Post-removal examination
Why
Confirm complete extraction and identify injury requiring further care.
Interpretation and limitations
Check both nasal cavities as appropriate, especially when more than one object may have been inserted. Battery injury or substantial mucosal damage needs specialist assessment even after the object has come out.

06Differential diagnosisRealistic alternatives and the features that help distinguish them.

Unilateral infection

Local infection can cause discharge and pain, but repeated treatment without inspection may miss the retained object maintaining inflammation. A foreign body should remain in the differential of a child with persistent unilateral symptoms.

Rhinitis

Allergic and non-allergic rhinitis more often cause a broader bilateral or fluctuating pattern. A persistently offensive or bloody discharge from one side is less typical and warrants direct examination.

Structural lesion

A polyp, congenital obstruction or another mass can mimic a foreign body presentation. Specialist assessment is appropriate when an object is not found and unilateral symptoms continue.

07ManagementImmediate care, first-line treatment, alternatives and escalation.

01High-risk materialEscalate battery or magnet exposureFirst stepEscalationA battery or magnets attracting across the septum are possible.

1Arrange immediate ENT assessment and removal, communicating the suspected material and insertion time if known.
2Avoid nasal irrigation and do not put topical preparations onto a suspected battery.
3If the object is not visible, agree targeted imaging and examination with the receiving team without delaying referral.
4After extraction, assess tissue injury and ensure the specialist follow-up plan is explicit.

02Suitable anterior objectPlan a single controlled attemptAn inert object is visible and the clinician has appropriate skills and facilities.

1Explain the plan to the child and caregiver, establish safe positioning and prepare the selected equipment before attempting removal.
2Choose a technique that fits the material and shape; forceps can slip on a smooth bead and push it farther back.
3Positive pressure may be appropriate for a selected smooth object in a suitable child, using a trained clinician's local paediatric protocol.
4Stop if the first attempt fails, cooperation is lost or bleeding obscures the view, and obtain ENT advice.

03Difficult or delayed presentationRefer without repeated manipulationThe object is inaccessible, symptoms persist or safe removal cannot be achieved.

1Arrange timely ENT review, with urgency increased for organic material, pain, bleeding or inflammation.
2Keep the patient from probing or inserting tools into the nostril while awaiting assessment.
3Discuss the safest setting and anaesthetic requirements with ENT rather than using routine sedation simply to permit repeated attempts.
4Provide clear advice to seek emergency help for breathing difficulty, significant bleeding or rapidly worsening symptoms.

08ComplicationsImportant consequences, why they occur and why they matter clinically.

Septal damage

Battery injury or pressure from paired magnets can cause mucosal necrosis and septal perforation. Follow-up is needed because tissue consequences may not be fully apparent immediately after removal.

Trauma and bleeding

The object and attempted removal can injure the nasal lining. Bleeding can obscure the field and increase the difficulty of a subsequent safe extraction.

Airway displacement

A nasal object can be displaced posteriorly during manipulation and create an aspiration hazard. Respiratory symptoms require urgent airway assessment rather than continued attempts to inspect the nose.

09Monitoring and follow-upTreatment response, safety checks and longer-term review.

Document the removed object and whether it appears complete, especially with friable material that can fragment.
Reassess pain, bleeding and nasal patency after extraction, and inspect for another object when the history or examination suggests one.
Arrange ENT follow-up for battery exposure, septal injury, difficult extraction or persistent offensive discharge rather than assuming removal ends the problem.
Give caregivers a clear action plan for fever, worsening facial swelling, recurrent bleeding or ongoing unilateral discharge.
Discuss safer storage of small objects, magnets and button batteries in a practical, non-blaming way after urgent care is complete.

10Special situationsVariants, exceptions and circumstances that change the usual approach.

Positive pressure needs selection

A cooperative older child may be able to blow the nose with the unaffected nostril occluded. A clinician-guided parent-kiss technique can help selected occlusive objects in younger children, but it is not a universal answer for batteries, posterior objects or an uncertain airway.

Sedation is a specialist decision

Paediatric procedural guidance differs in its approach to sedation. Because an object may move posteriorly and threaten the airway, a difficult extraction should prompt an ENT and paediatric anaesthetic plan in a suitably equipped setting rather than improvised sedation.

Irrigation can make matters worse

Liquid can swell organic material and does not provide reliable control of an object close to the airway. A nasal battery adds a chemical injury concern, making a no-irrigation approach especially important.

An adult can have the same diagnosis

A retained object is less common in adults but remains possible with cognitive impairment, deliberate insertion or an incomplete history. Persistent unilateral discharge should be examined directly rather than repeatedly treated as uncomplicated sinusitis.

11Common pitfallsFrequent interpretation and management errors.

01
Excluding a foreign body because no caregiver saw the child place anything in the nose.
02
Treating a metallic disc as an ordinary bead before checking whether it is a button battery.
03
Using repeated blind forceps attempts after bleeding has obscured the view.
04
Instilling liquid into the nose to loosen a suspected battery or swelling organic object.
05
Discharging after extraction without assessing mucosal damage or explaining when persistent symptoms need review.