A hydrocele is a type of swelling in the scrotum that occurs when fluid collects in the thin sheath surrounding a testicle.
A hydrocele is common in newborns and usually disappears without treatment by age 1. Older boys and adult men can develop a hydrocele due to inflammation or injury within the scrotum.
A hydrocele usually isn’t painful or harmful and might not need any treatment. Usually, the only indication of a hydrocele is a painless swelling of one or both testicles.
Adult men with a hydrocele might experience discomfort from the heaviness of a swollen scrotum. Pain generally increases with the size of the inflammation.
A hydrocele typically is not dangerous and usually does not affect fertility. But a hydrocele might be associated with an underlying testicular condition that can cause serious complications, including Infection or tumor (Might reduce sperm production or function) and Inguinal hernia.