Introduction

Learning objectives

Recognize the typical clinical presentation of hydrocele in children.
Differentiate communicating from noncommunicating hydrocele.
Know the criteria that guide referral.

Video lesson

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Video pending upload (embedded YouTube)

Summary

What is it?

A hydrocele is an accumulation of fluid around the testicle.

In children, it is usually related to a persistent processus vaginalis.

How does it present?

Usually as:

scrotal swelling;
painless;
soft consistency;
positive transillumination in many cases.

Communicating hydrocele

There is communication between the abdominal cavity and the scrotum.

A typical feature is that its size can vary during the day. Parents may say: "In the morning there's almost nothing, and in the afternoon it swells more."

Noncommunicating hydrocele

The fluid remains around the testicle without a significant communication with the abdominal cavity.

Many hydroceles in infants can resolve spontaneously.

When to refer?

Especially when it:

persists with growth;
increases in size;
there is suspicion of communication;
is associated with a hernia;
there are diagnostic doubts.

Key concept

A simple hydrocele is usually not an emergency. Acute scrotal pain requires considering other diagnoses.

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Practical algorithm

Non-retractile foreskin in a young child, without scarring or complications → probably physiological → do not force.
Retracted foreskin that cannot be returned + edema → paraphimosis → emergency.
Testicle outside the scrotum after the first months of life → refer → do not wait years.
Painless, fluctuant scrotal swelling → consider communicating hydrocele.
Adolescent with varicocele → assess testicular development and volume.
Infant with fever without a source → consider urinary tract infection.
Recurrent febrile UTI → assess the need to investigate urinary anomalies/VUR.
Sudden testicular pain → urgently rule out testicular torsion.

In Pediatric Urology, the primary care physician does not need to resolve every condition: they need to distinguish the physiological from the pathological, and recognize when to observe, when to investigate, when to refer and, above all, when to act urgently.

Clinical case

Content pending upload Progressive clinical case focused on decision-making.

Self-assessment

Questions pending upload 5–10 multiple-choice questions on this lesson.

References

Links pending upload References to PubMed, DOI, scientific society guidelines and journals.

Hydrocele