About this condition
A hydrocele is a collection of fluid around a testicle, which may enlarge one or both sides of a child’s scrotum. Not all scrotal swelling is a hydrocele, so clinical assessment is important.
What matters most
In some infants, a hydrocele gradually resolves without intervention. A swelling that varies during the day can be useful information for the paediatric surgeon when distinguishing different causes.
Symptoms and reasons to seek help
Painless or minimally uncomfortable swelling and scrotal asymmetry are common. Sudden severe pain, nausea or vomiting are not typical of an uncomplicated hydrocele.
How it differs from similar conditions
An inguinal hernia, testicular torsion and inflammatory problems can cause similar swelling. Torsion is particularly time-sensitive and must be considered whenever there is an acute painful scrotum.
Assessment and investigations
A paediatric surgeon reviews the onset and changes in size and examines the child. Scrotal ultrasound is considered if the cause is uncertain, the testicle cannot be assessed well or another condition must be excluded.
Care options and limitations
Observation or surgical correction may be appropriate depending on age, symptoms and persistence. Neither the need for an operation nor availability of surgery at this medical centre should be assumed without confirmation.
When emergency help is needed
Sudden severe scrotal pain, rapidly increasing swelling, nausea, vomiting or a child becoming very unwell may indicate testicular torsion or a trapped hernia. Seek immediate hospital care; call 103 or 112.
Related information
A groin bulge in a child; Swelling around a child’s navel; Phimosis in children; Inguinal hernia in children.
Signs and symptoms
Painless or minimally uncomfortable swelling and scrotal asymmetry are common. Sudden severe pain, nausea or vomiting are not typical of an uncomplicated hydrocele.
Diagnosis and tests
A paediatric surgeon reviews the onset and changes in size and examines the child. Scrotal ultrasound is considered if the cause is uncertain, the testicle cannot be assessed well or another condition must be excluded.
Care and treatment approaches
Observation or surgical correction may be appropriate depending on age, symptoms and persistence. Neither the need for an operation nor availability of surgery at this medical centre should be assumed without confirmation.
When to seek urgent care
Sudden severe scrotal pain, rapidly increasing swelling, nausea, vomiting or a child becoming very unwell may indicate testicular torsion or a trapped hernia. Seek immediate hospital care; call 103 or 112.
Frequently asked questions
Can a baby’s hydrocele disappear without surgery?
Yes. Some infant hydroceles resolve over time, and a surgeon can advise how to monitor them.
Does every child with hydrocele need ultrasound?
No. Examination may be sufficient in typical cases, with ultrasound reserved for uncertainty or other concerns.
Is sudden severe pain normal with hydrocele?
No. Sudden scrotal pain is an emergency warning sign, particularly because testicular torsion must be excluded rapidly.
Information sources
Medical source links used when preparing this article.
Important information
A medical consultation is needed for diagnosis and treatment recommendations.
Self-treatment can be harmful to your health.
