My Child Has a Nasal Polyp — Is It Normal? A Parent's Guide to Nasal Polyps in Children: When to Worry | London & Essex

My Child Has a Nasal Polyp — Is It Normal? A Parent's Guide to Nasal Polyps in Children

Your child has been struggling with a blocked nose.

The blockage may seem worse on one side.

Maybe they have persistent nasal discharge, or you have noticed something unusual inside one nostril.

During an examination, your GP mentions a possible nasal polyp.

Naturally, you begin wondering:

“What exactly is a nasal polyp?”

“Are nasal polyps normal in children?”

“Could this be something serious?”

“Will my child need an operation?”

The reassuring news is that many nasal polyps are benign.

However, nasal polyps differ between adults and children.

Nasal polyps are uncommon in children, especially younger ones, and their presence warrants careful evaluation.

Understanding why can help parents make informed decisions without unnecessary anxiety.

What is a nasal polyp?

A nasal polyp is a soft growth arising from the lining of the nose or sinuses.

The sinuses are air-filled spaces within the bones of the face and skull.

They connect with the nasal cavity through small drainage openings.

When the lining becomes chronically inflamed, it can sometimes develop soft, swollen projections called polyps.

Nasal polyps are usually pale, smooth and painless.

They may be small or large enough to obstruct airflow.

The NHS information about nasal polyps explains that polyps can cause persistent nasal blockage, discharge and reduced smell. nhs.uk

Are nasal polyps common in children?

No.

Nasal polyps are much more commonly diagnosed in adults.

They are relatively unusual in younger children.

This matters because a suspected nasal polyp in a child should not automatically be treated the same way as an adult nasal polyp.

The clinician needs to confirm that the swelling really is a polyp.

They may also need to consider whether an underlying condition is contributing to its development.

A nasal polyp does not automatically indicate a serious illness, but clinicians should establish the diagnosis carefully.

What symptoms can nasal polyps cause?

Symptoms depend on the polyp's size and location.

Parents may notice:

Persistent nasal blockage
One nostril appearing more obstructed than the other
Ongoing nasal discharge
Reduced sense of smell
Difficulty breathing comfortably through the nose
A visible pale swelling inside the nose
Symptoms of associated sinus inflammation.

Some children have relatively few symptoms.

Others develop gradually worsening nasal obstruction.

Reduced smell can be difficult to recognise in younger children because they may not know how to describe it.

Can parents see a nasal polyp?

Sometimes.

A larger polyp may be visible near the front of the nasal passage.

However, many polyps develop deeper inside the nose or sinuses.

A parent may notice a pale swelling and assume it is a polyp.

But not every swelling inside the nose is a nasal polyp.

Normal structures, including the inferior turbinates, can become enlarged during a cold or allergic reaction.

These structures are part of the normal nasal anatomy.

They should not be mistaken for abnormal growths.

Why does it matter if the polyp is on one side?

A swelling affecting only one nasal passage deserves particular attention.

Some benign conditions, including antrochoanal polyps, commonly affect one side.

However, other nasal masses can occasionally resemble a polyp.

NHS Cornwall guidance recommends further investigation of unilateral nasal polyps because the diagnosis may differ from ordinary inflammatory polyposis. Referral Management Service

This does not mean a one-sided nasal polyp is necessarily dangerous.

It means that the clinician should establish what the swelling is before recommending treatment.

What is an antrochoanal polyp?

An antrochoanal polyp is a particular type of benign nasal polyp.

It usually develops from the lining of the maxillary sinus, which lies within the cheek.

The polyp can extend backwards through the nasal cavity towards the area behind the nose.

It commonly affects one side.

Children may experience persistent unilateral nasal blockage or discharge.

Antrochoanal polyps are clinically important because they differ from the multiple inflammatory polyps more commonly encountered in adults.

A May 2026 study examined 86 children with antrochoanal polyps and 86 with chronic rhinosinusitis-associated polyps, showing differences in their tissue characteristics. PubMed

Does a nasal polyp mean my child has cystic fibrosis?

Not necessarily.

This is an important point for parents.

Cystic fibrosis is an inherited condition that affects several organs, particularly the lungs and digestive system.

It can also affect the nose and sinuses.

Because nasal polyps are uncommon in children, clinicians may consider cystic fibrosis when a child develops confirmed nasal polyposis.

However, finding a possible polyp does not mean that a child has cystic fibrosis.

The decision to investigate depends on the child's age, examination findings, respiratory history, growth and other symptoms.

NICE guideline NG78 recommends considering cystic fibrosis assessment in children with chronic sinus disease and other relevant clinical features. NICE

But my child had newborn screening. Is testing still necessary?

Most children with cystic fibrosis are identified through the NHS newborn screening programme.

This is reassuring.

However, newborn screening does not identify every possible case.

A child with persistent or unusual symptoms may still need further assessment, even after an earlier reassuring screening result.

If a specialist clinically suspects cystic fibrosis, they may recommend a sweat test or other investigations.

The Great Ormond Street Hospital explains that some children are diagnosed following symptoms rather than newborn screening alone. GOSH Hospital site

Are there other conditions associated with nasal polyps?

Yes.

In some children, clinicians may consider other conditions that affect mucus movement or the body's response to infection.

Examples include:

Primary ciliary dyskinesia, a condition that affects the microscopic structures that move mucus.

Immune disorders, which may contribute to recurrent infections.

Chronic rhinosinusitis, involving persistent inflammation of the nasal and sinus lining.

These conditions are not diagnosed simply because a child has a blocked nose.

Further investigation depends on the overall clinical picture.

How are nasal polyps diagnosed?

Assessment begins with a careful history.

The clinician will ask when the symptoms started and whether the blockage affects one or both nostrils.

They may ask about persistent discharge, recurrent chest infections, allergies, previous nasal problems and growth.

The nose is then examined.

If the diagnosis remains uncertain, a paediatric ENT specialist may recommend nasal endoscopy.

This allows a more detailed examination of the nasal cavity and the area behind the nose.

What happens during nasal endoscopy?

Nasal endoscopy involves using a thin instrument with a small camera to examine the inside of the nose.

The examination can help distinguish a genuine polyp from normal nasal structures or another type of swelling.

In a cooperative older child, the examination may be possible in clinic.

The clinician will explain what is involved and how to minimise discomfort.

Younger children may not tolerate a detailed examination, and the approach should be adapted accordingly.

Not every child needs endoscopy immediately.

Will my child need a CT scan or MRI?

Not automatically.

A small suspected polyp does not always require a scan.

Imaging may be useful when the diagnosis is uncertain, the lesion is unusually large or surgery is being considered.

A CT scan can show the sinus anatomy and the extent of associated disease.

MRI may be more appropriate when the clinician needs to distinguish different types of soft tissue or assess an unusual mass.

Select investigations based on clinical findings.

Can nasal polyps be treated without surgery?

Sometimes.

Treatment depends on the polyp type and underlying cause.

For inflammatory nasal polyps, a specialist may recommend an age-appropriate nasal steroid spray or other treatment directed at nasal inflammation.

Saline preparations may also be considered if they suit the child's age.

However, parents should not automatically use adult-strength medicines or follow adult nasal-irrigation instructions.

The NHS specifically advises that its general homemade salt-water nasal-wash method is not suitable for children. nhs.uk

Treatment should be individualised after assessment.

When might surgery be recommended?

Surgery may be considered when a confirmed polyp causes significant obstruction, does not respond adequately to appropriate treatment or requires removal to establish the diagnosis.

An antrochoanal polyp may require endoscopic removal, including treatment of its attachment within the sinus.

The operation is generally performed through the nose using an endoscope.

The surgeon should explain the proposed procedure, alternatives, expected benefits and material risks.

These may include bleeding, infection, recurrence and uncommon injury to nearby structures.

Not every child with a nasal polyp needs surgery.

Can nasal polyps return after treatment?

Yes.

Recurrence depends on the polyp type and the underlying condition.

Inflammatory polyps may recur if chronic inflammation continues.

Antrochoanal polyps may recur if part of the lesion or its attachment remains.

The May 2026 paediatric study found differences in tissue features associated with recurrence between antrochoanal polyps and chronic rhinosinusitis-associated polyps.

However, this retrospective study of children undergoing surgery should not be used to predict an individual child's outcome with certainty. PubMed Central (PMC)

What can parents do at home?

If your child has a suspected nasal polyp, avoid touching, squeezing, or removing the swelling.

Do not insert cotton buds or other objects into the nose.

Avoid using decongestant sprays repeatedly without medical advice.

If your child has been prescribed nasal medication, follow the instructions provided.

It may help to note whether symptoms are worsening and whether one or both nostrils are affected.

Persistent symptoms deserve assessment rather than repeated unsupervised treatment.

When should parents seek urgent medical advice?

Arrange prompt GP assessment if your child has a suspected nasal mass, particularly when the blockage is persistent or affects one side.

Seek urgent same-day advice if there is rapidly worsening obstruction, recurrent significant bleeding, increasing facial pain or swelling, or the child is becoming unwell.

Attend A&E immediately if your child develops:

Swelling around the eye with painful or restricted eye movements
Double vision or reduced vision
Severe headache with significant illness
Neck stiffness with fever
New neurological symptoms.

These may indicate complications requiring emergency assessment rather than an uncomplicated nasal polyp.

Call 999 for severe breathing difficulty, reduced consciousness, seizures or other life-threatening symptoms.

Paediatric nasal polyp assessment in London and Essex

For families across London, East London, Romford, Ilford, Redbridge, Woodford, Brentwood and Chelmsford, the priority is establishing the correct diagnosis.

Mr Gaurav Kumar, Consultant ENT Surgeon, assesses children with nasal, sinus and other paediatric ENT concerns.

Where a genuine nasal polyp is identified, assessment may involve collaboration with paediatric respiratory specialists or other teams if an underlying condition is suspected.

A routine appointment is appropriate only when the child is otherwise well and there are no urgent warning signs.

The key message for parents

Finding a possible growth inside your child's nose can be worrying.

However, many nasal swellings are benign, and some are simply normal structures that have become enlarged.

The important point is that true nasal polyps are uncommon in children.

They deserve appropriate assessment to confirm the diagnosis and consider whether an underlying condition needs investigation.

A nasal polyp in a child does not automatically mean serious disease or surgery — but it should not be dismissed without examination.

FREQUENTLY ASKED QUESTIONS

1. Are nasal polyps normal in children?

Nasal polyps are uncommon in children, particularly younger children. Assess any suspected polyp to confirm the diagnosis and consider any relevant underlying condition. nhs.uk

2. Does a nasal polyp mean my child has cystic fibrosis?

No. However, clinicians may consider cystic fibrosis when they identify genuine nasal polyps in a child. The decision to investigate depends on the overall clinical findings.

3. What is an antrochoanal polyp?

An antrochoanal polyp is a benign growth that usually arises from the maxillary sinus and extends backwards through the nasal cavity. It commonly affects one side.

4. Can a nasal polyp disappear without surgery?

Some inflammatory polyps may reduce with appropriate medical treatment. Other types, including many antrochoanal polyps, may require surgery. Treatment depends on the diagnosis.

5. Is a one-sided nasal polyp dangerous?

Not necessarily. Many unilateral lesions are benign, but a one-sided nasal mass requires careful assessment because other conditions can resemble a polyp.

6. Does my child need a nasal endoscopy?

Not always. Doctors may recommend nasal endoscopy when the diagnosis is uncertain or a detailed examination of the nasal cavity is needed.

7. Can nasal polyps grow back after surgery?

Yes. Recurrence is possible, and the risk varies by polyp type, underlying inflammation, and treatment performed.

8. When should I take my child to A&E?

Seek emergency assessment for visual changes, painful or restricted eye movements, significant facial swelling with illness, severe headache with neurological symptoms or other serious complications.

Disclaimer: This information is intended for general educational and regional SEO purposes only and does not replace personalised clinical advice. For a definitive structural evaluation, you need a face-to-face consultation with a registered specialist.