Hydrocele (of the Testes)

A hydrocele is a fluid-filled sack that surrounds a testicle and causes swelling in the scrotum.1 A hydrocele can develop on one side of the scrotum (unilateral), or on both sides of the scrotum (bilateral). Hydroceles are common in newborns and infants, though most hydroceles go away by the time the child turns 1 year old….