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Medically reviewed by Last updated on May 6, 2024.

What is a spermatocele?

A spermatocele is a fluid collection or cyst that forms in the epididymis behind your testicles. The cyst contains a milky liquid that usually has sperm in it. The cyst will feel like a smooth mass near your testicles that you can move inside your scrotum. The mass is not cancer. A spermatocele is usually not painful, but you may feel heaviness in your scrotum. The area may also be swollen. The cause of your spermatocele may not be known. Trauma, blockage, infection, or inflammation in your scrotum may increase your risk.


How is a spermatocele diagnosed?

Spermatoceles are sometimes found during a routine physical exam. Your healthcare provider will ask about your symptoms and when they began. Your provider may use the following to find the cause of your symptoms:

How is a spermatocele treated?

Treatment may not be needed. You may need any of the following if the spermatocele becomes large or causes pain or other problems:

What is a testicular self-exam?

A testicular self-exam is a monthly check of your testicles and scrotum. Your provider may ask you to check for changes, lumps, or pain. Ask for more information on how to do a testicular self-exam.

Testicular Self-exam

When should I seek immediate care?

When should I call my doctor?

Care Agreement

You have the right to help plan your care. Learn about your health condition and how it may be treated. Discuss treatment options with your healthcare providers to decide what care you want to receive. You always have the right to refuse treatment. The above information is an educational aid only. It is not intended as medical advice for individual conditions or treatments. Talk to your doctor, nurse or pharmacist before following any medical regimen to see if it is safe and effective for you.

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Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.