What is it?

A cyst of epididymis, also known as spermatocele, is an abnormal sac that develops in the epididymis, which is a narrow, tightly-coiled tube that is attached to each of the testicles . Sperm cells move from the testicles into the epididymis, where they finish maturing and are stored. A cyst of epididymis is usually filled with milky or clear fluid that might contain sperm. It's usually painless and non-cancerous. The exact cause of spermatoceles isn't clear. Some explain it by a sperm tract obstruction.

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Signs & symptoms

Common symptoms of spermatocele include testicular pain or discomfort, heaviness and fullness behind and above the testicle.


Diagnosis of spermatocele usually starts with a debrief and physical examination of the patient. Based on the findings, you might also undergo the following diagnostic tests: Transillumination - A test used by doctors to identify abnormalities in a body cavity or organ. Ultrasound - a high-frequency sound waves imaging test that can create images of structures to find any abnormality.


Usually cyst of epididymis doesn't cause pain and thereby doesn't need to get treated. If your spermatocele is painful, over-the-counter medications might be the right solution. Medications like Tylenol, Advil, and Addax can help. If the pain continues or you choose to remove the cyst from aesthetically reasons, your doctor may refer you to a procedure called spermatocelectomy. This procedure is performed on outpatient basis. The surgeon separates the cyst from the epididymis. This procedure can be performed using a local or general anesthetic.

☝️ This is not a substitute for professional medical advice. Please consult with your physician before making any medical decision.

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