Posterior Urethral Valves (PUV) and Circumcision in Babies: My Experience and Approach

My approach to circumcision in babies diagnosed with posterior urethral valves, with particular attention to reducing the risk of urinary tract infections.

Written by Dr Martin Harris BPharm Hons, MB BS, LRCP MRCS, FRCGP, RCPathMe

My Experience Performing Circumcision in Boys with Posterior Urethral Valves

I have personal experience of performing circumcision in boys diagnosed with posterior urethral valves (PUV).

This experience has given me an appreciation of the particular considerations involved when circumcision is undertaken in a baby with an established urological condition. These are not simply routine circumcisions considered in isolation. The child’s diagnosis, medical history, current condition and wider treatment plan all need to be taken into account.

In boys with PUV, one potential benefit of circumcision is a reduction in the risk of urinary tract infections (UTIs), particularly infections associated with fever. This is important because PUV can affect the bladder, ureters and kidneys, and some boys remain vulnerable to urinary complications even after the obstruction has been treated.

My approach is to consider circumcision in the context of the child’s individual circumstances, with appropriate regard to the investigations performed, the treatment of the underlying obstruction and the recommendations of the treating paediatric urology team.

I believe parents should understand both the potential benefits and the limitations of circumcision in this setting. Circumcision does not treat PUV itself, and it cannot guarantee that a child will remain free from urinary tract infections.

My experience has reinforced the importance of treating each child as an individual and ensuring that circumcision, where appropriate, forms part of a considered approach to their overall urological care.

Dr Martin Harris has extensive experience in baby circumcision and considers the individual medical circumstances of each child when planning the procedure, particularly where an underlying urological condition may influence the risks and potential benefits.

Posterior Urethral Valves and Circumcision: Key Points

For parents whose baby has been diagnosed with PUV, the following points are important:

• Posterior urethral valves are a congenital condition affecting boys in which abnormal tissue folds obstruct the flow of urine through the urethra.
• The obstruction can affect the bladder and kidneys and may be associated with vesicoureteric reflux, impaired kidney function and urinary tract infections.
• Ultrasound can identify abnormalities of the urinary tract, but a voiding cystourethrogram (VCUG), also known as a micturating cystourethrogram (MCUG), is generally required to investigate suspected PUV.
• Treatment of the valves themselves is undertaken by a specialist paediatric urology team.
• Circumcision does not correct the obstruction caused by PUV.
• Clinical research supports circumcision as an additional measure to reduce febrile UTI risk in boys with PUV when used alongside appropriate medical management.
• Antibiotic prophylaxis may still be necessary, depending on the child’s condition and the recommendations of the treating team.
• The suitability and timing of circumcision should be considered individually.
• Long-term monitoring of bladder and kidney function remains important, even after successful treatment of the obstruction.

The central principle is that circumcision may have a useful role in reducing infection risk, but it must be considered as part of the child’s wider urological care.

What Are Posterior Urethral Valves?

Posterior urethral valves are abnormal folds of tissue within the posterior urethra, the channel through which urine passes from the bladder.

They are present from birth and can obstruct the normal flow of urine to varying degrees. PUV is an important cause of congenital lower urinary tract obstruction in boys.

The consequences depend on the severity of the obstruction and its effects on the bladder and upper urinary tract. Some boys are diagnosed before birth following abnormalities identified on antenatal ultrasound. Others are diagnosed after birth when investigations are undertaken because of urinary symptoms, infection or abnormal imaging.

PUV may be associated with:

• Dilatation of the kidneys and ureters.
• Changes in the appearance or thickness of the bladder.
• Vesicoureteric reflux (VUR), in which urine flows backwards from the bladder towards the ureters and kidneys.
• Urinary tract infections.
• Abnormal bladder function.
• Impaired kidney function.

The condition requires specialist assessment because the effects of the obstruction can extend beyond the immediate difficulty of passing urine.

Even after the valves have been treated, some boys need long-term monitoring because bladder dysfunction, reflux or impaired kidney function may persist.

Why Are Urinary Tract Infections Important in PUV?

Urinary tract infections are an important concern in boys with posterior urethral valves.

The underlying obstruction can be associated with changes in bladder function and abnormalities of the upper urinary tract. Vesicoureteric reflux may also be present, adding to the complexity of the child’s condition.

A febrile urinary tract infection is an infection associated with fever. In young infants, it requires particular attention because infection can sometimes become serious, and symptoms may initially be non-specific.

In children with significant urinary tract abnormalities, recurrent or inadequately treated infections can contribute to kidney damage. Preventing infection, recognising symptoms promptly and ensuring appropriate treatment are therefore important parts of their care.

Management may include treating the obstruction, assessing bladder and kidney function, considering antibiotic prophylaxis where indicated, and evaluating additional measures that could reduce infection risk.

Circumcision is one such measure. Its potential benefit in boys with PUV is supported by clinical research, although it does not eliminate the possibility of further infections.

How Is PUV Diagnosed?

The diagnosis and assessment of posterior urethral valves involve several investigations. The exact approach depends on the child’s presentation and the findings of the specialist team.

Ultrasound examination

Ultrasound is an important investigation when a urinary tract abnormality is suspected.

It can assess the kidneys, the degree of dilatation of the renal collecting systems and ureters, and the size and appearance of the bladder.

Findings such as dilatation of the ureters or an abnormal bladder appearance may raise suspicion of an obstruction. However, these findings must be interpreted in the context of the child’s overall clinical picture.

Ultrasound can identify abnormalities that warrant further investigation, but it cannot reliably confirm or exclude PUV on its own.

Voiding cystourethrogram (VCUG) or micturating cystourethrogram (MCUG)

A VCUG, known in the UK as an MCUG, is an important investigation when PUV is suspected.

The examination involves filling the bladder with contrast through a catheter and taking X-ray images as the bladder fills and empties. The images can demonstrate abnormalities in the urethra during urination that are consistent with posterior urethral valves.

The investigation can also identify vesicoureteric reflux, in which urine flows backwards towards the ureters and kidneys.

Other investigations

Depending on the individual circumstances, further assessment may include:

• Blood tests to assess kidney function.
• Urine testing and culture when infection is suspected.
• Cystoscopy to examine the urethra and confirm the valves where appropriate.
• Additional imaging or functional investigations to assess the kidneys and bladder.

The results help the paediatric urology team determine the severity of the condition, plan treatment and establish an appropriate follow-up programme.

How Are Posterior Urethral Valves Treated?

It is important to distinguish the treatment of PUV from the potential role of circumcision.

The obstruction caused by the valves requires specialist urological management. In a newborn with suspected significant obstruction, the initial priorities may include ensuring adequate bladder drainage, stabilising the child’s condition and assessing kidney function.

Where appropriate, the valves are treated by endoscopic valve ablation. This procedure is performed by a specialist paediatric urologist to relieve the obstruction.

Some babies require additional measures to maintain adequate urinary drainage or manage complications.

Treatment of the obstruction is only one part of the child’s care. Ongoing monitoring is important because bladder dysfunction and kidney problems may persist even after the valves have been treated.

Circumcision is not a substitute for any of these treatments. Its potential role is to reduce the risk of urinary tract infections as an additional measure within the child’s overall management plan.

The Role of Circumcision in Boys with PUV

The role of circumcision in boys with posterior urethral valves has been investigated in clinical research.

One particularly relevant study is the CIRCUP trial, a multicentre randomised controlled trial published in European Urology in 2022.

The study included 91 boys with PUV. It compared antibiotic prophylaxis alone with antibiotic prophylaxis combined with circumcision.

Over two years, the reported probability of a febrile urinary tract infection was 20% in the group receiving antibiotic prophylaxis alone, compared with 3% in the group receiving both antibiotic prophylaxis and circumcision.

These findings support the use of circumcision as an additional measure to reduce febrile UTI risk in boys with PUV.

However, the results need to be interpreted in context. The study was relatively small, and 64 of the 91 children completed follow-up to two years. The findings provide useful evidence of benefit, but they do not mean that circumcision will prevent every infection or that the same benefit can be assumed for every child.

The European Association of Urology (EAU) guidance on paediatric urology recognises neonatal circumcision as an additional measure to reduce febrile UTI risk in boys with PUV, particularly where high-grade vesicoureteric reflux is present. It recommends considering circumcision alongside antibiotic prophylaxis in appropriate cases.

This distinction is important. Circumcision may reduce infection risk, but it does not remove the valves, reverse established kidney injury or replace the treatment and monitoring required for PUV.

The decision should be made in the context of the child’s individual condition and the recommendations of the paediatric urology team.

My Approach to Circumcision in Babies with PUV

When considering circumcision for a baby diagnosed with posterior urethral valves, I regard the underlying diagnosis as an important part of the planning process.

I want parents to understand why circumcision is being considered, what benefit it may offer and what it cannot achieve.

I also want to be satisfied that the child’s wider medical management has been considered and that proceeding is appropriate in the circumstances.

Important considerations include:

• Has the diagnosis of PUV been established through appropriate investigations?
• Has the child been assessed by a specialist paediatric urology team?
• Has the obstruction been treated, or is there a clear treatment plan?
• Is there evidence of vesicoureteric reflux or significant upper urinary tract dilatation?
• Has the child experienced urinary tract infections?
• Has the treating team considered whether antibiotic prophylaxis is indicated?
• Is the child’s general medical condition suitable for circumcision?
• Has the potential benefit of circumcision in reducing infection risk been discussed with the treating team?

The answers will vary between children.

One baby may have stable kidney function and a clear management plan, while another may have significant obstruction, active infection or other medical concerns requiring priority treatment.

For this reason, I do not regard a diagnosis of PUV as sufficient, by itself, to determine whether or when circumcision should take place. The decision must reflect the child’s individual clinical circumstances.

Planning the Procedure

When circumcision is being considered for a baby with PUV, I believe the procedure should be planned with an understanding of the child’s medical history and current condition.

The priority is to ensure that circumcision does not distract from or delay necessary treatment of the underlying urological problem.

Where the treating paediatric urology team considers circumcision appropriate, it can be planned as an additional measure within the overall care pathway.

Parents should understand that circumcision may reduce the risk of infection but does not eliminate it. They should continue to follow the treating team’s recommendations regarding antibiotic prophylaxis, investigations and follow-up.

The aim is to consider the potential benefits of circumcision alongside the child’s individual needs, rather than treating the procedure as an isolated intervention.

Why Specialist Follow-up Remains Important

Treating posterior urethral valves is not simply a matter of relieving the obstruction in the newborn period.

Some boys continue to experience bladder dysfunction, vesicoureteric reflux, urinary tract infections or impaired kidney function despite appropriate initial treatment.

For this reason, long-term specialist follow-up is essential. Monitoring may include assessment of kidney function, bladder function, urinary symptoms and the occurrence of further infections.

Circumcision may form part of a strategy to reduce infection risk, but it does not replace this monitoring or the treatment of any ongoing urological problems.

Parents should seek prompt medical advice if their baby develops a fever or appears unwell, particularly if a urinary tract infection is suspected. A young infant with known PUV who develops a fever needs timely medical assessment.

Frequently Asked Questions

Can circumcision treat posterior urethral valves?

No. Circumcision does not remove or correct the obstruction caused by posterior urethral valves. The valves require specialist paediatric urological treatment. Circumcision may be considered as an additional measure to reduce the risk of urinary tract infections.

Why might circumcision be recommended for a baby with PUV?

Boys with PUV may have an increased risk of febrile urinary tract infections. The CIRCUP trial found a lower risk of febrile UTI when circumcision was combined with antibiotic prophylaxis than with antibiotic prophylaxis alone. The potential benefit should be considered in the context of the child’s individual condition and specialist recommendations.

Does every baby with PUV need circumcision?

No. The decision should be individualised. The child’s urological findings, history of infection, presence of vesicoureteric reflux, general condition and recommendations of the treating team all need to be considered.

Does circumcision replace antibiotic prophylaxis?

No. Circumcision is an additional preventive measure. Antibiotic prophylaxis should be used when indicated by the child’s treating clinicians. Parents should not stop or change prescribed antibiotics independently because circumcision has been performed.

Can ultrasound diagnose PUV?

Ultrasound can identify abnormalities that raise suspicion of PUV, including changes affecting the kidneys, ureters and bladder. However, further investigations, particularly a VCUG or MCUG, are generally required when PUV is suspected.

Does circumcision prevent kidney damage caused by PUV?

Circumcision does not correct the obstruction or directly treat established kidney damage. Its potential benefit is reducing the risk of urinary tract infections. Protecting kidney function depends on appropriate treatment of the obstruction, management of bladder dysfunction, prompt treatment of infections and ongoing specialist monitoring.

When should circumcision take place?

The timing depends on the child’s medical condition and the management plan agreed with the treating team. Treatment of the obstruction, management of active infection and stabilisation of other medical concerns take priority. Circumcision can then be considered when it is clinically appropriate.

Can a boy develop urinary tract infections after circumcision?

Yes. Circumcision may reduce the risk of febrile UTIs, but it does not eliminate the risk. Parents should continue to follow the child’s medical management plan and seek prompt advice if symptoms of infection develop.

My Final Message to Parents

A diagnosis of posterior urethral valves can be worrying for parents because the condition may affect the bladder, kidneys and a child’s future urinary health.

The important thing to understand is that several aspects of care may be needed. The obstruction must be assessed and treated by a specialist paediatric urology team. Kidney and bladder function require appropriate monitoring, and urinary tract infections must be recognised and managed promptly.

Circumcision may provide an additional benefit by reducing the risk of febrile urinary tract infections in appropriately selected boys with PUV. Clinical research supports considering it alongside antibiotic prophylaxis, particularly in children with significant vesicoureteric reflux.

My approach is to consider circumcision within this wider clinical context, ensuring that parents understand both its potential benefits and its limitations.

For me, the central principles are simple:

Understand the diagnosis. Treat the obstruction. Reduce infection risk. Continue appropriate follow-up.

Circumcision can have a useful role in the care of some boys with posterior urethral valves, but it should always form part of a properly planned approach to the child’s overall urological health.

Medical Information Disclaimer

This article describes my professional approach to circumcision in babies diagnosed with posterior urethral valves (PUV). It is provided for general educational information and is not a substitute for individual medical advice, clinical assessment or treatment by a suitably qualified healthcare professional.

Posterior urethral valves are a congenital urological condition that can affect bladder and kidney function. Diagnosis, treatment and ongoing monitoring should be managed by an appropriate specialist paediatric urology team.

Circumcision does not treat the underlying obstruction caused by PUV. Although clinical evidence supports its role as an additional measure to reduce urinary tract infection risk in appropriately selected boys, it does not eliminate the risk of infection or replace other recommended treatments.

Parents should discuss the potential benefits, risks, timing and suitability of circumcision with their child’s treating clinicians.

Last medically reviewed: October 2026 — confirm this date following clinical review before publication.

Written by: Dr Martin Harris BPharm Hons, MB BS, LRCP MRCS, FRCGP, RCPathMe

References and Further Reading

1. Harper L, Blanc T, Peycelon M, et al. Circumcision and Risk of Febrile Urinary Tract Infection in Boys with Posterior Urethral Valves: Result of the CIRCUP Randomized Trial. European Urology. 2022;81(1):64–72. Read the study on PubMed. DOI: 10.1016/j.eururo.2021.08.024.
2. European Association of Urology. EAU Guidelines on Paediatric Urology: Congenital Lower Urinary Tract Obstruction — Posterior Urethral Valves. Read the current guidance.
3. European Association of Urology. EAU Guidelines on Paediatric Urology: Urinary Tract Infections in Children. Read the guidance.
4. European Association of Urology and European Society for Paediatric Urology. Congenital Lower Urinary Tract Obstruction: Update and Summary of the EAU and ESPU Guidelines. Find the publication on PubMed.