A hydrocele occurs when the scrotum fills with fluid and becomes heavy. A hydrocele occurs in males when fluid fills the scrotum, which is the sac under the penis that contains the testicles. Fluid can surround one or both testicles, causing swelling in the scrotum.
Hydrocele occurs when there is a collection of fluid inside the scrotum. This causes one of the testicles to look larger than the other. Hydroceles are often found.
Hydrocele is common in newborns and usually disappears without treatment by age 1. Older boys and adult men can develop a hydrocele due.