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Spermatocele Guide: Symptoms, Causes, and Treatment

Published: October 9, 2026Updated: October 9, 2026

A spermatocele is a non-cancerous, fluid-filled cyst that forms on the epididymis, the coiled tube behind the testicle that stores and transports sperm. This guide explains what to expect if you are diagnosed with a spermatocele, including symptoms, treatment options, and self-care tips.

Quick summary

Spermatoceles are common, non-cancerous cysts on the epididymis that rarely cause serious health problems. Most do not require treatment unless they cause pain, discomfort, or fertility concerns. Treatment options range from watchful waiting to a minor surgical procedure called a spermatocelectomy.

Medically reviewed by WellAlly Medical Editorial TeamLast reviewed October 9, 2026Editorial policy

Overview

A spermatocele (also called an epididymal cyst) is a non-cancerous, fluid-filled growth that forms on the epididymis, the coiled tube located behind the testicle that stores and carries sperm. Spermatoceles are very common, affecting up to 1 in 3 adult men at some point in their lives, and most cause no symptoms or health problems. They are not a form of testicular cancer and do not increase your risk of developing testicular cancer, and they do not affect sexual function in most cases.

Signs & Symptoms

Many men with spermatoceles have no symptoms at all, and the cyst is only found during a routine physical exam. If symptoms do occur, they are usually mild and related to the size of the cyst:

  • Painless, smooth lump on the top or behind the testicle
  • Dull ache or pressure in the scrotum
  • A feeling of heaviness in the scrotum, especially after standing or physical activity
  • Mild swelling that may come and go
  • Rarely: pain during sexual activity or ejaculation

Causes & Risk Factors

The exact cause of spermatoceles is not fully understood, but they most often form when the tiny, hair-like tubules of the epididymis become blocked. This blockage traps fluid and sperm, creating a small cyst. While most spermatoceles have no clear cause, a few factors may increase your risk of developing one:

  • A history of epididymitis (inflammation of the epididymis, often from a bacterial infection)
  • Prior scrotal injury or surgery (including vasectomy)
  • Being between the ages of 40 and 60 (spermatoceles are most common in middle-aged and older men)

Diagnosis

If you notice a lump in your scrotum or have persistent scrotal pain, schedule an appointment with your healthcare provider. They will start with a physical exam of the scrotum and testicles, then may order one or more of the following tests to confirm a spermatocele diagnosis and rule out other conditions like testicular cancer:

  • Scrotal ultrasound: The most common diagnostic test, which uses sound waves to create detailed images of the scrotum. This test can confirm the lump is a fluid-filled cyst (not a solid tumor) and measure its size.
  • Semen analysis: If you are concerned about fertility, this test checks your sperm count and function to see if the spermatocele is affecting your ability to conceive.
  • Blood tests: Used to rule out infections or other underlying conditions that could be causing scrotal symptoms.

Treatment & Management

Most spermatoceles do not require treatment, especially if they are small, painless, and not affecting your fertility. Your healthcare provider will recommend a treatment plan based on the size of the cyst, your symptoms, and your personal health goals:

Treatment OptionDescriptionWhen It Is Recommended
Watchful waitingRegular follow-up appointments (usually every 6-12 months) with physical exams and scrotal ultrasounds to monitor the size of the spermatocele. No immediate intervention is needed.For small, asymptomatic spermatoceles that are not growing or causing discomfort.
Pain managementOver-the-counter pain relievers (such as ibuprofen or acetaminophen) and supportive underwear or a scrotal jockstrap to reduce pressure and discomfort.For mild pain or discomfort from a larger spermatocele.
SpermatocelectomyA minor outpatient surgical procedure to remove the cyst and a small portion of the attached epididymis. The surgery is performed under local or general anesthesia, and most people go home the same day.For large, painful spermatoceles; spermatoceles that are causing fertility problems; or cysts that are growing quickly or causing significant discomfort.

Living With It

For most men, spermatoceles have no impact on daily life, sexual function, or fertility. You can continue all normal activities, including exercise and sexual activity, unless your healthcare provider advises otherwise. If you have a spermatocele that is being monitored, keep up with your regular follow-up appointments to ensure the cyst is not growing or causing new symptoms. Note that while most spermatoceles do not affect fertility, large or multiple cysts can sometimes block sperm flow or reduce sperm count. If you are trying to conceive, discuss your fertility concerns with your healthcare provider, who may recommend a semen analysis to check your sperm health.

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WellAlly Medical Editorial Team

This content is not a replacement for professional medical advice.

Recovery & management timeline

  1. 0-7 days

    Initial Evaluation & Diagnosis

    Schedule an appointment with your healthcare provider if you notice a scrotal lump or persistent discomfort. Attend your physical exam and any recommended diagnostic tests (like a scrotal ultrasound) to confirm the diagnosis and rule out other conditions.

  2. Every 6-12 months, ongoing

    Ongoing Monitoring (Asymptomatic Cases)

    Attend regular follow-up appointments with physical exams and scrotal ultrasounds to track the size of the spermatocele. Report any new symptoms (increased pain, swelling, or changes to the lump) to your provider right away.

  3. As needed, ongoing

    Symptom Management (If Pain/Discomfort Occurs)

    Use over-the-counter pain relievers as directed, wear supportive underwear to reduce scrotal pressure, and avoid strenuous activities or prolonged sitting that worsen discomfort.

  4. 1-14 days post-surgery

    Post-Spermatocelectomy Recovery

    Rest and avoid heavy lifting, strenuous exercise, and sexual activity for 1-2 weeks. Keep the surgical site clean and dry, and attend your post-op follow-up appointment to check healing and discuss any concerns.

Self-care steps

1Wear supportive underwear

Choose snug, supportive underwear (like a jockstrap) during physical activity or if you experience scrotal discomfort. This reduces pressure on the epididymis and can ease mild pain or aching.

2Use pain relievers as directed

For mild discomfort, over-the-counter nonsteroidal anti-inflammatory drugs (NSAIDs) like ibuprofen or acetaminophen can help reduce pain and swelling. Always follow the dosing instructions on the label, and talk to your provider before taking pain relievers regularly if you have other health conditions (like liver or kidney disease).

3Avoid scrotal irritation

Avoid tight clothing, prolonged sitting, and activities that put pressure on the scrotum (like long-distance cycling) if they worsen your symptoms.

4Track your symptoms

Keep a simple log of any changes in the size of the lump, pain levels, or new symptoms. Share this log with your healthcare provider at follow-up appointments to help them adjust your care plan as needed.

5Practice good scrotal hygiene

Wash the scrotal area daily with mild soap and water, and dry it thoroughly to reduce the risk of irritation or infection, especially if you have a large spermatocele that makes cleaning more difficult.

When to seek medical help

Seek urgent medical care immediately if you experience any of the following red-flag symptoms: sudden, severe scrotal pain; scrotal redness, warmth, or swelling that comes on quickly; fever along with scrotal pain or swelling; a lump that feels hard, is fixed in place, or is growing rapidly; or blood in your semen. These symptoms can be signs of a serious condition like testicular torsion, epididymitis, or testicular cancer that require immediate treatment.

Frequently asked questions

Is a spermatocele a sign of testicular cancer?
No. Spermatoceles are non-cancerous, fluid-filled cysts, and they do not increase your risk of developing testicular cancer. However, it is important to have any scrotal lump evaluated by a healthcare provider to rule out cancer or other serious conditions.
Can a spermatocele affect my fertility?
Most spermatoceles do not affect fertility. However, large or multiple spermatoceles can sometimes block sperm flow or reduce sperm count. If you are trying to conceive, talk to your provider about getting a semen analysis to check your sperm health.
Is spermatocelectomy surgery safe?
Spermatocelectomy is a very safe, minor outpatient procedure. Complications are rare, but can include infection, bleeding, or temporary swelling and discomfort. In very rare cases, the surgery can cause scarring that blocks sperm flow, which may affect fertility. Your provider will discuss the risks and benefits of surgery with you before the procedure.
Can spermatoceles go away on their own?
Small spermatoceles may stay the same size for years or even shrink slightly on their own, but they rarely disappear completely. Most men with asymptomatic spermatoceles do not need treatment, and regular monitoring is all that is required.
Can I still have sex if I have a spermatocele?
Yes, in most cases spermatoceles do not affect sexual function or cause pain during sex. If you do experience pain during sexual activity, talk to your provider, as this may be a sign that the cyst is large enough to need treatment.
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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Medical Editorial Team · Last reviewed October 9, 2026. · Read our editorial policy