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A hydrocele is a fluid-filled sac that surrounds a testicle. It often appears as swelling in the scrotum and can be present at birth or develop later in life. Hydroceles are usually painless and may resolve on their own without treatment.

Urology
  • What exactly is a hydrocele?
    MedlinePlusMay 2026

    A hydrocele is when fluid builds up around one or both testicles, making the scrotum swell and feel heavy. The fluid itself is usually harmless, but it can make your scrotum larger than normal.

  • Can I still play sports with a hydrocele?
    MedlinePlusMay 2026

    You can usually play sports with a hydrocele, but wearing an athletic supporter can help you feel more comfortable and protect your testicles from injury.

  • How common are hydroceles in men and boys?
    MedlinePlusMay 2026

    Hydroceles are fairly common in men and boys, especially in newborns and older men. Many cases go away on their own without needing treatment.

  • Will my testicles get bigger because of the fluid buildup?
    MedlinePlusMay 2026

    Yes, the fluid buildup can make your scrotum and testicles appear larger, but the testicles themselves don't actually grow bigger.

  • Does having a hydrocele increase my risk for other problems?
    MedlinePlusMay 2026

    A hydrocele by itself usually doesn't cause other problems, but sometimes it can be a sign of another condition, so your doctor will check to make sure everything else is okay.