Lump in Testicle: Causes, Symptoms, and When to Seek Help

What is Lump in Testicle?

A lump in the testicle is an abnormal mass or swelling that can be felt in or on a testicle (testis). The testicles are two small, egg-shaped organs inside the scrotum (the sac of skin below the penis) that produce sperm and hormones like testosterone. While some lumps may be harmless, others can indicate a serious condition, including testicular cancer.

It’s important to perform regular testicular self-exams to detect any changes early. Most lumps are painless, but some may cause discomfort. If you notice a lump, see a doctor promptly for evaluation.

Common Causes

Several conditions can cause a lump in the testicle. Here are the most common:

• Varicocele: An enlargement of the veins within the scrotum, similar to varicose veins in the legs. Usually harmless but can affect fertility.
• Hydrocele: A fluid-filled sac around the testicle, common in newborns but can occur in adults due to injury or infection.
• Epididymal cyst (spermatocele): A benign, fluid-filled cyst in the epididymis (the tube that stores sperm). Typically painless.
• Testicular cancer: A malignant tumor, most common in men aged 15–35. Often painless but requires urgent medical attention.
• Epididymitis: Inflammation of the epididymis, usually caused by infection (e.g., STIs like chlamydia) or urinary tract infections.
• Orchitis: Inflammation of the testicle, often due to a viral infection like mumps or bacterial infection.
• Inguinal hernia: A portion of the intestine pushes through a weak spot in the abdominal wall into the scrotum, causing swelling.
• Testicular torsion: A twisted spermatic cord that cuts off blood supply to the testicle. This is a medical emergency.
• Hematoma: A collection of blood due to injury or trauma to the testicles.
• Testicular microlithiasis: Small calcium deposits in the testicles, often detected during imaging for other conditions.

While many of these conditions are benign, testicular cancer is a serious concern and should always be ruled out by a doctor.

Associated Symptoms

A lump in the testicle may be accompanied by other symptoms, depending on the underlying cause. Common associated symptoms include:

• Swelling or enlargement of the testicle.
• Dull ache or pain in the testicle or scrotum.
• Heaviness or dragging sensation in the scrotum.
• Redness or warmth in the scrotum (sign of infection or inflammation).
• Sudden, severe pain (possible sign of testicular torsion).
• Nausea or vomiting (often with torsion or severe infection).
• Fever or chills (may indicate infection like epididymitis or orchitis).
• Discharge from the penis (possible sign of a sexually transmitted infection).
• Enlarged lymph nodes in the groin (can occur with infections or cancer).

If you experience sudden, severe pain or symptoms like fever and nausea, seek immediate medical attention.

When to See a Doctor

You should see a doctor if you notice:

• A new lump or swelling in or around the testicle.
• Any change in the size, shape, or texture of the testicles.
• Pain or discomfort in the testicle or scrotum that doesn’t go away.
• Redness, warmth, or signs of infection.
• A feeling of heaviness in the scrotum.

Do not wait to see if the lump goes away on its own. Early diagnosis is crucial, especially for conditions like testicular cancer, which is highly treatable when caught early.

Diagnosis

If you find a lump, your doctor will perform a thorough evaluation, which may include:

• Physical exam: The doctor will examine the testicles, scrotum, and groin for lumps, swelling, or tenderness.
• Transillumination: Shining a light through the scrotum to check for fluid (e.g., hydrocele) or solid masses.
• Ultrasound: A painless imaging test to determine if the lump is solid (possibly cancer) or fluid-filled (e.g., cyst or hydrocele).
• Blood tests: To check for tumor markers like AFP, HCG, or LDH, which can indicate testicular cancer.
• Urinalysis or STD testing: If an infection like epididymitis is suspected.
• Biopsy: Rarely done for testicular lumps due to risk of spreading cancer. Usually, the entire testicle is removed (orchiectomy) if cancer is suspected.

Based on these tests, your doctor will determine the cause of the lump and recommend appropriate treatment.

Treatment Options

Treatment depends on the underlying cause of the lump:

Medical Treatments

• Testicular cancer: Treatment may include surgery (orchiectomy), radiation, or chemotherapy. The American Cancer Society notes that testicular cancer has a high cure rate, especially when detected early.
• Epididymitis or orchitis: Antibiotics for bacterial infections; pain relievers and rest for viral infections.
• Varicocele or hydrocele: Surgery may be recommended if the condition causes pain or fertility issues.
• Testicular torsion: Emergency surgery to untwist the spermatic cord and restore blood flow.
• Inguinal hernia: Surgical repair to push the intestine back into the abdomen and strengthen the abdominal wall.

Home and Supportive Care

• Apply ice packs to reduce swelling from injuries or infections.
• Wear supportive underwear (e.g., an athletic supporter) to ease discomfort.
• Take over-the-counter pain relievers like ibuprofen or acetaminophen (follow your doctor’s advice).
• Avoid heavy lifting or strenuous activity if you have a hernia or hydrocele.

Never ignore a testicular lump. Even if it’s not cancer, other conditions like torsion or severe infections require prompt treatment.

Prevention Tips

While not all causes of testicular lumps can be prevented, you can reduce your risk with these steps:

• Perform monthly testicular self-exams. The best time is after a warm shower when the scrotum is relaxed. Gently roll each testicle between your fingers to feel for lumps or changes.
• Practice safe sex to reduce the risk of STIs that can lead to epididymitis.
• Get vaccinated against mumps to prevent orchitis.
• Wear protective gear during sports or activities that could cause groin injuries.
• Seek prompt treatment for urinary tract infections or STIs to prevent complications.

Early detection is key. The CDC recommends that men be aware of changes in their testicles and report any concerns to their doctor.

Final Thoughts

A lump in the testicle should never be ignored. While many causes are benign, some—like testicular cancer or torsion—require urgent care. By performing regular self-exams and seeking medical attention for any changes, you can protect your health and catch serious conditions early.

If you’re unsure or anxious, talk to your doctor. They can provide guidance, perform necessary tests, and recommend the best course of action. Your health is worth it.

References

• Mayo Clinic: Testicular Cancer
• National Cancer Institute: Testicular Cancer
• Centers for Disease Control and Prevention (CDC): Testicular Cancer
• Cleveland Clinic: Testicular Lump
• NHS: Testicular Lumps and Swellings