Any abnormality detected in the testicles can cause understandable concern. Among the most common conditions are testicular cysts. In the vast majority of cases, these formations are benign and harmless. This article analyzes what they are, why they appear, and when they require medical attention, to allay fears and help you make informed decisions.
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What is a testicular cyst?
A testicular cyst is a closed sac or pouch filled with fluid, air, or other semi-fluid material that develops on or within the testicle. However, most cysts that men feel are not in of the testicular tissue itself, but in the epididymis (a coiled tube behind the testicle where sperm mature and are stored) or in the structures surrounding the testicle. These specific cysts are known as spermatoceles or epididymal cysts.
These growths are usually benign (noncancerous), slow-growing, and asymptomatic. Their size can vary from a few millimeters to several centimeters in diameter.
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Spermatocele
The most common. It's a cyst that forms in the epididymis and is filled with a milky or clear fluid containing sperm. It's caused by a blockage in the tubules that transport sperm, causing a buildup. They are always benign.
Simple epididymal cyst
In this case, the cyst is filled with clear fluid, free of sperm. It is also located in the epididymis and is benign.
hydrocele
Technically, it's not a cyst, but it's often mistaken for one. It's a collection of serous fluid in the tunica vaginalis, the membrane that surrounds the testicle. It causes generalized swelling of the scrotum, which may be noticeable in the light.
Vaginal tunic cyst
Cysts that develop in the layers of the vaginal tunic that cover the testicle. They are usually small and asymptomatic.
varicocele
It's not a cyst, but rather a common scrotal mass. It's a varicose dilation of the veins that drain blood from the testicle (the pampiniform plexus), giving it a sensation similar to "a bag of worms."
It may interest you: varicocele affects erection.
Causes
Blocked ducts
It is believed to be due to obstruction of the tubules of the epididymis that transport sperm, which causes fluid accumulation and the formation of the cyst.
Infections and inflammations
Previous episodes of epididymitis (inflammation of the epididymis) or orchitis (inflammation of the testicle), often caused by STIs or bacteria, can damage the ducts and create scarring that leads to blockages.
Trauma
A strong blow to the scrotal area can cause secondary inflammation or directly damage the ducts, increasing the risk of developing a cyst in the long term.
Congenital factors
Some men may be born with a predisposition or small abnormalities in the structure of the epididymis that make them more susceptible to developing cysts.
Symptom
Palpable mass or lump
A small, smooth, well-defined lump is detected on the top or back of the testicle (epididymal area), which is discovered during self-examination or bathing.
Feeling of heaviness or discomfort
When the cyst reaches a considerable size (more than 2 to 3 centimeters), it can cause a feeling of heaviness, dull discomfort, or pressure in the affected testicle or groin.
Sharp or intense pain
Pain is not common in small cysts. But a large cyst may press on adjacent nerves or structures, causing testicular painSudden, severe pain may indicate a complication, such as testicular torsion or bleeding, and requires immediate medical attention.
Visible enlargement of the scrotum
Large cysts may cause visible enlargement and swelling of the scrotum, which may be asymmetrical.
How is it detected?
The diagnosis of a testicular cyst is made in the urologist's office.
It includes a physical examination in which the doctor will gently palpate the testicles, epididymis, and spermatic cord to determine the location, size, consistency, and tenderness of the lump.
They can be observed using transillumination with a small flashlight. Fluid-filled cysts allow light to pass through, while solid masses (such as tumors) do not.
Imaging tests such as scrotal or testicular ultrasound are performed to create a detailed image of the interior of the scrotum. Ultrasound can confirm that the mass is cystic rather than solid, pinpoint its exact location, accurately measure its size, and rule out other pathologies, such as tumors or varicoceles.
Possible complications and risks
Complications from a testicular cyst are rare. The main risks include enlargement, which exacerbates symptoms of heaviness, discomfort, or pain; infection, which causes severe pain, redness, fever, and swelling; rupture due to direct trauma; and, in very specific cases, male infertility by partially obstructing the passage of sperm.
The most important risk to always rule out is testicular cancer. Ultrasound is essential for this distinction.
What is the treatment for testicular cysts?
Treatment depends on the size of the cyst and the presence or absence of symptoms.
For small, asymptomatic cysts, no active treatment is required; just wait and see. The urologist will simply recommend periodic checkups (every 6 to 12 months) to monitor for significant changes.
There are no medications that can eliminate or shrink a testicular cyst. Anti-inflammatory pain relievers (such as ibuprofen) can be used to temporarily relieve occasional pain or discomfort.
A fine needle puncture can be performed to extract the fluid from the cyst. However, this procedure has a high recurrence rate, as the cyst sac remains and often refills. It also carries a risk of infection or bleeding.
After aspiration, a sclerosing agent can be injected to try to force the cyst walls together and prevent refilling. Its use is controversial in the scrotum due to the potential risk of damaging the epididymis and impairing fertility.
When is it necessary to operate on a testicular cyst?
Known as spermatocelectomy, it is reserved for specific cases, such as when the cyst is large and causes persistent pain or significant discomfort that affects quality of life, when the cyst continues to progressively increase in size despite follow-up, when the diagnosis is unclear and there is some doubt about the benign nature of the mass, or when it causes proven infertility due to obstruction.
The surgery is performed on an outpatient basis, usually under regional or general anesthesia, and involves carefully removing the cyst while preserving the testicle and epididymis.
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Prevention and self-care measures
There is no known way to prevent the development of testicular cysts. Self-care focuses on early detection and proper management.
Monthly testicular self-examination is the most important measure. It's performed after a warm shower, when the scrotum is relaxed, gently rolling each testicle between your fingers to determine its normal texture and detect any lumps, changes in size, or consistency.
To prevent trauma, use a jockstrap or groin guard in contact sports.
Using a condom also helps prevent sexually transmitted infections that can lead to epididymitis, and if you detect any lump, swelling, pain, or change in the testicles, you should see a urologist without delay.
Frequently Asked Questions (FAQs)
How to know if it is a testicular cyst or cancer?
The key is in the features. The qyou servedIt is usually round, smooth, soft, or elastic, and feels separate from the testicle. It is often painless.
Testicular cancer usually presents as a hard, irregular lump attached to the testicle. It may be painless or cause a dull ache.
The only reliable way to differentiate them is through a scrotal ultrasound.
How do you feel a testicular cyst?
Place your thumb on the front of the testicle and your index and middle fingers behind it, gently sliding them across the entire surface. The epididymis feels like a soft "cord" at the top and back. A cyst (spermatocele) will feel like a smooth, mobile "ball" or "pea" in this same area.
How much does a testicular cyst grow?
Growth is generally very slow, over months or years. Many cysts remain the same size indefinitely. Rapid growth is rare and should be urgently evaluated by a doctor.
What is the difference between a testicular cyst and a tumor?
A cyst is a closed, fluid-filled cavity. It is almost always benign.
A tumor is a mass of cells that multiply abnormally. It can be benign or malignant (cancerous). Testicular tumors are solid.
When a man has cysts in his testicles, can he have children?
Yes, in most cases. Testicular cysts, especially small ones, do not affect hormone or sperm production. Fertility may only be compromised by the presence of very large, bilateral spermatoceles that physically obstruct the passage of semen, or if surgery to remove them complicates and damages the epididymis.
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Conclusion
Far from being a cause for alarm, the discovery of testicular cysts is an opportunity to raise awareness about urological health. Most do not require treatment beyond periodic checkups, and prompt consultation with a specialist is always necessary. A simple ultrasound can provide an accurate and reassuring diagnosis. Regular self-examination and attention to bodily changes remain the best strategy for maintaining optimal testicular health and detecting any pathology that requires immediate intervention.
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