Hydroceles can occur in children as well as adults – often in children, it develops before birth. The testicles normally descend from the baby’s abdominal cavity into the scrotum with a sac accompaying each testicle to allow fluid to surround the testicles. However, sometimes the fluid remains instead of being absorbing. Most often it is absorbed gradually over time when the baby is born.
Where the hydrocele fails to go away by itself, surgery may be required to prevent an inguinal hernia. This is done by making a small incision in the groin and the fluid is drained off before the opening is closed.