Hydroceles factsheet

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A hydrocele is a swelling around the testicle caused by a collection of fluid. It is a common problem in children.
All boys have a connection between their abdomen and their scrotum before they are born.
By birth, this connection is usually closed. If it stays open, the fluid that surrounds the bowel may trickle down and collect in the scrotum.
Your child should no longer have the hydrocele. Surgery should prevent your child from having discomfort or embarrassment caused by having the hydrocele or it getting larger as he gets older. In some cases hydroceles become hernias so the procedure will stop this from happening.
A hydrocele improves over time, as the connection will often close within the first few years of life. Surgery is usually recommended if the connection has not closed by the time your child is 2 to 3 years old.
If the hydrocele does not get better, it may get larger. This may cause discomfort or embarrassment. There is also a risk that your child may develop a hernia later in life.
The procedure is performed under a general anaesthetic and usually takes about an hour.
Your surgeon will make a cut on the groin.
Your surgeon will find the connection, which is stuck on to the blood vessels that supply the testicle and on to the vas, the tube that will carry sperm away from the testicle. Your surgeon will peel the connection away from these tubes before tying it off.
The healthcare team are trained to reduce the risk of complications.
Any risk rates given are taken from studies of children who have had this procedure. Your doctor may be able to tell you if the risk of a complication is higher or lower for your child.
Some complications can be serious and may even cause death.
He should be able to go home the same day.
Your child will usually be well enough to return to school after around 3 days.
Most children make a full recovery and can return to normal activities.
A hydrocele is a common condition where fluid collects around a testicle. Surgery is usually recommended if a hydrocele continues beyond the second year of life. If left untreated, a hydrocele can get larger and is unlikely to get better.
IMPORTANT INFORMATIONThe operation and treatment information on this page is published under license by Healthdirect Australia from EIDO Healthcare Australia and is protected by copyright laws. Other than for your personal, non-commercial use, you may not copy, print out, download or otherwise reproduce any of the information. The information should not replace advice that your relevant health professional would give you. Medical Illustration Copyright © Medical-Artist.com.
For more on how this information was prepared, click here.
IMPORTANT INFORMATION
The operation and treatment information on this page is published under license by Healthdirect Australia from EIDO Healthcare Australia and is protected by copyright laws. Other than for your personal, non-commercial use, you may not copy, print out, download or otherwise reproduce any of the information. The information should not replace advice that your relevant health professional would give you. Medical Illustration Copyright © Medical-Artist.com.
For more on how this information was prepared, click here.
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Last reviewed: January 2026
