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Medically reviewed by Last updated on Jan 5, 2023.

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.



Return to the emergency department if:

  • You have sudden, severe pain in your scrotum or testicle.

Contact your healthcare provider if:

  • The cyst does not go away or gets bigger.
  • The cyst becomes painful or causes discomfort.
  • You have questions or concerns about your condition or care.


  • Medicine may be given to reduce pain or inflammation. Ask your provider how to take pain medicine safely.
  • Take your medicine as directed. Contact your healthcare provider if you think your medicine is not helping or if you have side effects. Tell your provider if you are allergic to any medicine. Keep a list of the medicines, vitamins, and herbs you take. Include the amounts, and when and why you take them. Bring the list or the pill bottles to follow-up visits. Carry your medicine list with you in case of an emergency.

Follow up with your healthcare provider as directed:

Your provider may want to check the spermatocele over time. He or she may also refer you to a urologist if the spermatocele becomes large or painful, or causes other problems. Write down your questions so you remember to ask them during your visits.

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.

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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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