A spermatocele, also known as a spermatocele, is a benign fluid-filled cyst that develops in the epididymis, the structure that sits on top of and behind the testicle. The cyst often contains fluid containing sperm and occurs when a small duct in the epididymis becomes blocked. The condition is relatively common and is usually harmless.
Most spermatoceles do not cause symptoms and are sometimes discovered by chance during a self-examination or a medical examination. In some cases, however, the cyst can grow and cause a lump in the scrotum or a feeling of heaviness in the testicle.
Symptoms of spermatoceles
Many spermatoceles are small and do not cause any problems. When symptoms occur, they may include:
A soft or round lump above the testicle.
A feeling of heaviness or discomfort in the scrotum.
Slight swelling in the testicular area.
Pain or tenderness if the cyst gets larger.
The lump is usually located in the epididymis and can often feel like a small, movable cyst above the testicle.
Causes of sperm cysts
The exact cause of sperm cysts is not always fully understood, but they most often occur when a duct in the epididymis becomes blocked. This can cause fluid and sperm to collect and form a cyst.
Factors that are sometimes linked to the development of sperm cysts include:
Blockage in the epididymis duct system.
Previous inflammation or infection of the epididymis.
Trauma or injury to the scrotum.
Diagnosis and examination
A sperm cyst is often discovered during a physical examination where the doctor feels the scrotum. Since several conditions can cause lumps in the testicular area, it is important to get a proper diagnosis.
Common tests may include:
Clinical examination where the doctor feels the testicles and epididymis.
Ultrasound of the testicles to differentiate a cyst from other conditions.
Ultrasound is a safe method to confirm that the lesion is a fluid-filled cyst and not a solid tumor.
Difference between spermatic cyst and other lumps in the scrotum
There are several conditions that can cause lumps or swelling in the scrotum. Therefore, it is important to examine changes in the testicular area.
Other conditions that can cause similar symptoms include:
- Epididymitis.
- Hydrocele (fluid around the testicle).
- Varicocele (varicose veins in the scrotum).
- Testicular cancer.
However, most sperm cysts are benign and often do not require treatment.
Treatment of sperm cysts
Small sperm cysts that do not cause any discomfort usually do not require treatment. In many cases, it is sufficient to monitor the change over time. If the cyst grows or causes pain, treatment may be necessary. Possible treatment options include:
Observation – the most common recommendation for small cysts without symptoms.
Surgical removal if the cyst is causing significant discomfort or is growing.
Surgery is usually performed through a minor procedure where the cyst is removed from the epididymis.
Examination if a sperm cyst is suspected
If you notice a lump or change in your scrotum, the area should be examined by a doctor. The initial assessment usually includes a clinical examination where the doctor feels the testicles and epididymis to assess the size, location, and consistency of the lump.
Since several different conditions can cause lumps in the scrotum, imaging is often an important part of the investigation. The most common method is testicular ultrasound, which is a quick and painless examination that uses sound waves to see the structures in the scrotum.
Ultrasound makes it possible to:
determine whether the change is a fluid-filled cyst or a solid lump
distinguish a sperm cyst from other conditions in the testicle or epididymis
assess the size and exact location of the cyst
Ultrasound can usually quickly confirm whether the change is a sperm cyst, which in most cases is a benign condition.
When should you seek medical attention?
It is important to contact your healthcare provider if you discover a new lump in the scrotum or changes in the testicles. Although sperm cysts are benign, other conditions need to be ruled out.
Seek medical attention if you experience:
A new lump in the testicle or scrotum.
Pain or swelling in the testicular area.
A rapidly growing change in the scrotum.
Early examination is important to rule out more serious conditions such as testicular cancer.