hydrocele

A hydrocele is a collection of fluid around the testicle.

 

A hydrocele may be present at birth or may develop later in life. Most often, a parent notices a swelling in a child's scrotum caused by the hydrocele. The fluid that fills the hydrocele is normally present in the abdomen. It seeps through a balloon-like structure around the testicle called the tunica vaginalis. The neck of this balloon runs along a structure in both of the testes called the spermatic cord and opens into the abdomen. Normally, this neck is sealed off before birth. If it fails to close, fluid continues to seep through and cause scrotal swelling.

 

A painless swelling in the scrotum is a sign of a hydrocele. It may occur on one or both sides.

 

Hydroceles are more common among premature babies. They develop when the canal between the peritoneal cavity and scrotum fails to close. An inflammation or injury to a testicle may cause a hydrocele.

Boys and men should wear an athletic cup that protects the scrotum when playing sports such as baseball and football. Sports safety guidelines can help prevent injury to the testicles. Since hydroceles are more common among premature infants, prenatal care is important to prevent the premature birth of a baby.

During a physical exam, a healthcare professional finds a mass within the scrotum. The fluid in the hydrocele is clear, so a light can be shined through the scrotum. The outline of the testicle will be visible. An ultrasound may be done to confirm the diagnosis.