DEFINITION

A hydrocele (HI-droe-seel) is a fluid-filled sac surrounding a testicle that causes swelling in the scrotum. Hydrocele is common in newborns and usually disappears without treatment during the first year of life. 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. However, if you have scrotal swelling, see your doctor to rule out other causes.

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SYMPTOMS

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. Sometimes, the swollen area might be smaller in the morning and larger later in the day.