Lump in Testicles: Symptoms, Diagnosis & Treatment

Lump in testicles, also known as scrotal masses, are most often caused by non-cancerous conditions. However, in a small number of cases, they can be an early sign of testicular cancer. Scrotal lumps or swelling may also develop due to infections, fluid buildup around the testicle (hydrocele), enlarged veins in the scrotum (varicocele), cysts, or a hernia.

Some lumps are painless and discovered accidentally, while others may cause discomfort and a feeling of heaviness. The size or shape of the testicles may also change. It’s important not to ignore any new lump, swelling, or change in the scrotum, because the causes can vary widely.

What is a Lump in Testicles?

A lump in testicles (Scrotal mass) is an abnormal growth that develops on or near the testis. Most people have two testicles, although some may have more or fewer than this. Their main functions are to produce sperm and the hormone testosterone.

However, certain testicular lumps may interfere with fertility, and in some cases, they can indicate a more serious condition, including testicular cancer. For this reason, any new or unusual lump should be checked by a healthcare professional.

Where can a lump on the testicle appear?

A lump in testicles (Scrotal mass) can appear in different locations depending on the underlying cause. It may develop on the surface of the testicle itself or in the surrounding structures within the scrotum. Scrotal masses are relatively common, and most lumps found on or around the testicles are not cancerous.

Even so, it’s important to have any new lump or swelling examined by a healthcare provider to confirm the diagnosis and determine whether treatment is needed.

What are the causes of testicular lumps?

A lump in the testicle can be a sign of various medical conditions, the majority of which are not serious. Most scrotal lumps are benign (non-cancerous). The most common causes of lumps or swelling in the testicles include:

• Epididymitis: This is inflammation of the epididymis (the tube located behind and above each testicle that stores and carries sperm). It is often caused by a bacterial infection, including sexually transmitted diseases, and may lead to pain, tenderness, swelling, and warmth in the affected testicle.
• Hydrocele: A hydrocele occurs when fluid collects around the testicle inside the scrotum. It usually causes painless swelling and may make the scrotum feel heavy. Hydroceles are common and are often harmless, though large ones may cause discomfort.
• Inguinal hernia: An inguinal hernia develops when part of the intestine or abdominal tissue pushes through a weak spot in the abdominal wall. This can create a soft bulge in the groin or scrotum that may become more noticeable when standing, coughing, or lifting.
• Orchitis: Orchitis is inflammation of one or both testicles, commonly caused by a bacterial or viral infection, such as mumps. It can result in sudden pain, swelling, tenderness, and sometimes fever or general illness.
• Spermatocele: It is a non-cancerous fluid-filled cyst that forms in the epididymis behind the testicle. It usually feels smooth and firm, is often painless, and may contain sperm. Spermatoceles typically don’t require treatment unless they cause discomfort.
• Testicular cancer: Testicular cancer occurs when abnormal cells grow within the tissues of a testicle. It often presents as a firm, painless lump or change in testicle size or shape. Although it’s less common than other causes, early detection greatly improves treatment outcomes.
• Varicocele: Varicoceles are enlarged veins within the scrotum that result from poor blood flow. They often feel like a “bag of worms” and are more noticeable when standing. Varicoceles may cause a dull ache or heaviness and can sometimes affect fertility.

New lump, swelling, or change in the testicles should be checked on time to identify the cause and receive appropriate treatment.

What are the other symptoms of testicular lumps?

Symptoms of a testicular lump can vary depending on the underlying cause and the size of the lump. Some testicular lumps cause little to no discomfort and may go unnoticed. Others can lead to more noticeable or troubling symptoms, such as:

• A reduction in the size of one or both testicles (testicular atrophy)
• Pain or a dull, aching sensation in the testicles or scrotum that may spread to the groin or other areas
• Swelling of the testicles or scrotum
• Feeling heavy in the scrotum
• Blood in the semen (hematospermia)
• Fever and chills
• Pain or burning during urination (dysuria)
• Nausea and vomiting

Certain conditions that cause testicular lumps may also interfere with fertility and affect the ability to conceive.

Also, read about Male Urinary Tract Infection Symptoms

How are testicular lumps diagnosed?

To diagnose a lump in the testicle, a healthcare professional will usually:

• Review your medical history
• Ask detailed questions about your symptoms and sexual health.
• Perform a physical examination of the scrotum and testicles.

To help identify the underlying cause, they may also recommend one or more tests, including:

• Testicular ultrasound: A non-invasive imaging test that allows the provider to see the exact location and characteristics of the lump and helps rule out conditions such as hernias or testicular cancer.
• Blood tests: A small blood sample is taken to check for signs of infection, inflammation, or other abnormalities.
• Urinalysis: You’ll provide a urine sample, which is examined for visual, chemical, and microscopic changes that may indicate infection or inflammation.

What are the treatments for testicular lumps?

Treatment for a scrotal lump varies based on the underlying cause. If the lump is painless, not causing discomfort, and not associated with a serious condition, active treatment may not be required, and regular monitoring may be sufficient.

Common treatment options for scrotal masses include:

• Medications: Antibiotics are commonly used when the bacterial infection causes a lump.
• Hernia repair surgery: A procedure to return the hernia to its proper position and strengthen the weakened area of the abdominal wall.
• Surgery for the mass: Surgical treatment may involve removing, draining, or repairing the lump, depending on its type and severity.
• Chemo or Radiation therapy: These treatments are used to destroy cancer cells in cases of testicular cancer.
• Orchiectomy: Surgical removal of one or both testicles, typically performed when necessary to treat testicular cancer.

Your healthcare provider will recommend the most appropriate treatment based on the diagnosis and overall health.

What are the complications of not treating a testicular lump?

The risks of leaving a scrotal mass untreated depend on the cause, but potential complications may include:

• Abscess formation: A painful collection of pus in the scrotum, particularly with infections such as epididymitis or orchitis.
• Fluid buildup: Accumulation of fluid in the scrotum, which can cause swelling and discomfort.
• Testicular shrinkage: Inflammation or damage may lead to a reduction in testicle size (testicular atrophy).
• Infertility: Certain conditions, including infections and testicular cancer, can affect sperm production and fertility.
• Progression of cancer: Untreated testicular cancer can spread to other parts of the body and may be life-threatening.

Early assessment by a healthcare professional improves the chances of timely treatment and helps prevent serious complications.

How can testicular lumps be prevented?

Not all causes of testicular lumps can be prevented. However, regularly checking your testicles and scrotum for lumps or changes can help with early detection. A monthly testicular self-examination only takes a few minutes and can help you notice any unusual changes promptly.

You may also reduce the risk of certain bacterial or viral causes by:

• Using condoms during sexual activity lowers the risk of sexually transmitted diseases (STDs).
• Staying up to date with recommended vaccinations that protect against infections known to cause scrotal masses.

Conclusion

Testicular lumps are common and are most often caused by non-cancerous conditions, but in rare cases, they can signal a serious problem such as testicular cancer. Because symptoms and causes vary widely, any new lump, swelling, or change in the testicles should never be ignored.

Early self-examination, prompt medical assessment, and appropriate testing help ensure accurate diagnosis and effective treatment. Timely care not only reduces the risk of complications such as infertility or infection but can also be life-saving when cancer is involved.

A healthcare provider can examine the scrotum and testicles and may recommend tests such as an ultrasound, urine tests, or blood tests to identify the underlying cause. Regular testicular self-examination can also help detect changes early.

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