Spermatocele

A spermatocele (epididymal cyst) is a fluid-filled cyst in the long, tightly coiled tube that lies above and behind each testicle (epididymis). It feels like a smooth, firm lump in the scrotum on top of the testicle. Having a spermatocele doesn't affect fertility.

Often a spermatocele does not cause symptoms. There may be an extra lump or mass above the testicle on one side of your scrotum. Or you may notice enlargement of your scrotum. Symptoms, when present, can include pain, swelling, or redness of the scrotum or pressure at the base of the penis.

A spermatocele is usually diagnosed by examining the scrotum. As part of the exam, your doctor may shine a light behind each testicle (transillumination) to check for solid masses that may be caused by other problems, such as cancer of the testicle. Spermatoceles are filled with fluid, so light will shine through them. Light will not pass through solid masses that may be caused by other problems, such as cancer of the testicle. An ultrasound may be used to confirm the diagnosis of a spermatocele.

A spermatocele is not usually dangerous and is treated only if it grows larger or causes pain or other problems. Treatment is not usually needed if a spermatocele does not change in size or gets smaller as the body reabsorbs the fluid.

If the spermatocele gets larger or causes discomfort, a procedure to remove the spermatocele (spermatocelectomy) may be needed.

• Be safe with medicines. Take your medicines exactly as prescribed. Call your doctor if you have any problems with your medicine. You will get more details on the specific medicines your doctor prescribes.
• Learn how to check your testicles so you can see if the lump changes. This can also help you find a spermatocele that comes back after treatment.