What Is a Testicular Ultrasound?

A testicular ultrasound, also called a scrotal ultrasound, is a noninvasive imaging examination of the testicles and surrounding tissues.

It may assess:

• Testicular size and structure
• Blood flow
• Epididymis
• Spermatic cord
• Scrotal fluid
• Veins around the testicle
• Lumps, cysts, or other abnormalities
• Signs of inflammation or injury

Ultrasound is the primary imaging method used to evaluate many disorders of the testicles, epididymis, and scrotum. It does not use ionizing radiation. RadiologyInfo: Scrotal Ultrasound

Who Should Consider Testicular Ultrasound?

A urologist may recommend the examination for:

• Sudden or persistent testicular pain
• Scrotal swelling
• A testicular or scrotal lump
• A change in testicular size
• Redness or warmth
• Testicular injury
• Suspected epididymitis
• Suspected orchitis
• Possible testicular torsion
• Varicocele
• Hydrocele
• Spermatocele
• Male infertility
• Undescended testicle
• Follow-up of a known abnormality

Sudden severe testicular pain requires immediate emergency evaluation rather than a delayed routine appointment.

What Is Doppler Testicular Ultrasound?

Doppler ultrasound measures blood flow through the testicular arteries and veins.

It may help evaluate:

• Reduced or absent blood flow from torsion
• Increased blood flow from infection or inflammation
• Enlarged veins from varicocele
• Blood-vessel injury
• Blood flow within or around a mass

Color Doppler is particularly important when testicular torsion is suspected.

Testicular Ultrasound for Sudden Pain

Sudden pain may be caused by:

• Testicular torsion
• Epididymitis
• Orchitis
• Trauma
• Inguinal hernia
• Torsion of a testicular appendage
• Kidney stone pain referred to the testicle

Ultrasound can help distinguish between several causes, but it should not delay emergency surgery when clinical findings strongly suggest torsion.

Testicular Torsion

Testicular torsion occurs when the spermatic cord twists and interrupts blood supply to the testicle. It is a surgical emergency that can cause permanent damage if treatment is delayed. MedlinePlus: Testicular Torsion

Warning signs include:

• Sudden severe pain
• Rapid swelling
• A testicle positioned higher than usual
• Nausea or vomiting
• Pain beginning during sleep or exercise
• Severe pain in a child or teenager

Go to an emergency department immediately if these symptoms occur.

Epididymitis and Orchitis

Epididymitis is inflammation of the tube behind the testicle. Orchitis affects the testicle itself.

Ultrasound may show:

• Epididymal enlargement
• Testicular swelling
• Increased blood flow
• Fluid around the testicle
• Abscess formation
• Other complications

Urine testing, STI screening, and blood tests may be performed alongside imaging.

Testicular Ultrasound for a Lump

A lump may arise from:

• The testicle
• Epididymis
• Scrotal skin
• Spermatic cord
• Fluid around the testicle
• Enlarged veins
• Hernia tissue

Ultrasound can help determine whether a mass is:

• Inside or outside the testicle
• Solid or fluid-filled
• Associated with abnormal blood flow
• Likely to require further evaluation

A new testicular lump should be examined promptly, even when it is painless.

Can Ultrasound Diagnose Testicular Cancer?

Ultrasound can identify a suspicious testicular mass, but it does not always establish the final diagnosis.

Further evaluation may include:

• Physical examination
• Tumor-marker blood tests
• CT imaging
• Surgical specialist assessment
• Pathological examination

A biopsy through the scrotal skin is generally not the routine diagnostic approach for a suspicious testicular cancer.

Varicocele Ultrasound

A varicocele is an enlargement of veins around the testicle, commonly on the left side.

Possible symptoms include:

• Dull aching
• Scrotal heaviness
• Pain that worsens while standing
• A “bag of worms” sensation
• Reduced testicular size
• Fertility concerns

Doppler ultrasound may evaluate vein size and reversed blood flow during breathing or straining maneuvers.

Hydrocele

A hydrocele is fluid collected around the testicle. It commonly causes painless swelling or heaviness.

Ultrasound can:

• Confirm the fluid collection
• Examine the underlying testicle
• Distinguish a hydrocele from a solid mass
• Identify signs of inflammation or trauma

Small, painless hydroceles may not require treatment.

Spermatocele and Epididymal Cysts

A spermatocele or epididymal cyst is a fluid-filled growth near the epididymis.

These lesions are often benign and painless. Ultrasound can confirm that the lump is separate from the testicular tissue.

Treatment may be considered when a cyst becomes large or uncomfortable.

Testicular Injury

Ultrasound may be recommended after:

• Sports injury
• Direct impact
• Fall
• Traffic accident
• Workplace injury
• Recent scrotal surgery

The scan may assess:

• Testicular rupture
• Internal bleeding
• Hematoma
• Reduced blood flow
• Swelling
• Fluid collection
• Tissue damage

Severe pain, rapid swelling, or significant bruising after injury requires prompt urology care.

Testicular Ultrasound for Male Infertility

Ultrasound may be included in a fertility evaluation when there is concern about:

• Varicocele
• Testicular size
• Previous infection
• Testicular injury
• Obstruction
• Azoospermia
• Hormonal disorders
• Undescended testicle
• Abnormal physical examination

It is generally combined with semen analysis and hormone testing rather than used alone.

Undescended Testicle

An undescended testicle has not moved into its expected position within the scrotum.

Ultrasound may sometimes help locate the testicle, although other imaging or surgical evaluation may be necessary when it cannot be seen or felt.

A history of undescended testicle is relevant to fertility and testicular cancer risk and should be discussed with a urologist.

How to Prepare for Testicular Ultrasound

Little or no special preparation is generally required.

Patients may be advised to:

• Wear loose, comfortable clothing
• Remove jewelry near the examination area
• Bring previous imaging reports
• Bring urine or STI test results
• Inform the clinician about recent injury
• Explain exactly where pain or a lump is located

Fasting and a full bladder are generally not required unless another ultrasound examination is being performed at the same visit.

What Happens During the Examination?

The patient typically lies on the back. The scrotum may be supported with a towel or cloth to keep the testicles positioned side by side.

The clinician then:

1. Applies clear ultrasound gel to the scrotal skin.
2. Moves a handheld probe gently over each side.
3. Compares the testicles.
4. Examines the epididymis and surrounding tissue.
5. Uses Doppler imaging to assess blood flow.
6. Saves images for interpretation.

The examination is performed externally and does not require inserting a probe into the body.

Is Testicular Ultrasound Painful?

The examination is generally painless. However, moving the probe over an inflamed, injured, or twisted testicle may cause temporary discomfort.

Tell the clinician immediately if pressure causes significant pain.

How Long Does the Ultrasound Take?

A routine testicular ultrasound may be completed within a relatively short outpatient appointment.

The visit may take longer when it includes:

• Emergency assessment
• Urology consultation
• Urine testing
• STI screening
• Blood tests
• Fertility evaluation
• Additional abdominal or pelvic imaging

Urgent findings may be discussed immediately.

Are There Any Risks?

Testicular ultrasound:

• Does not use radiation
• Does not require an incision
• Usually requires no injection
• Can be repeated when medically necessary
• Does not affect sperm or fertility

The examination has no known significant risk when performed appropriately.

Limitations of Testicular Ultrasound

Ultrasound cannot always determine:

• The exact cause of every pain condition
• Whether every mass is cancerous or benign
• The source of referred pain from the kidney, spine, or pelvis
• Sperm count or quality
• Hormone levels
• Whether fertility is normal

Additional testing may be needed when symptoms persist despite normal imaging.

Additional Tests That May Be Recommended

Depending on the findings, the doctor may order:

• Urinalysis
• Urine culture
• STI screening
• Blood tests
• Testicular tumor markers
• Semen analysis
• Testosterone, LH, and FSH testing
• Abdominal or pelvic CT
• MRI in selected cases
• Hernia evaluation

Not every patient requires every examination.

Understanding Normal Results

A normal ultrasound may show:

• Similar testicular size
• Uniform testicular tissue
• Normal blood flow
• No suspicious mass
• No significant fluid collection
• No enlarged veins

Normal imaging does not exclude pelvic floor pain, nerve irritation, intermittent torsion, or pain referred from another area.

What Happens After an Abnormal Result?

Treatment depends on the diagnosis and may include:

• Emergency surgery for torsion
• Antibiotics for bacterial infection
• Pain and inflammation management
• Varicocele repair
• Hydrocele or cyst surgery
• Hernia repair
• Follow-up imaging
• Testicular tumor evaluation
• Fertility treatment
• Pelvic floor or pain-management care

The urologist should explain whether the finding requires observation, medication, further testing, or surgery.

Testicular Ultrasound for International Patients

Busan offers testicular ultrasound through urology clinics, imaging centers, and hospitals. English-language support varies by facility.

International patients should bring:

• Previous ultrasound images
• A list of medications
• Details of current symptoms
• History of testicular injury or surgery
• Previous urine and STI results
• Semen analysis and hormone results
• Fertility treatment records
• Travel insurance information for emergency care

Patients with sudden severe pain should visit an emergency department rather than wait for a scheduled clinic appointment.

Testicular Ultrasound Cost in Busan

The total cost may depend on:

• Urology consultation
• Standard scrotal ultrasound
• Color Doppler imaging
• Emergency assessment
• Urine and STI testing
• Blood tests
• Tumor-marker testing
• Fertility evaluation
• Additional CT or MRI imaging
• Follow-up consultation

An individualized estimate can be provided after the medical team determines which examinations are required.

When Should You Seek Emergency Care?

Seek immediate medical attention for:

• Sudden severe testicular pain
• Rapid swelling
• A high-positioned testicle
• Nausea or vomiting with pain
• Severe pain after injury
• Dark or discolored scrotal skin
• High fever or shaking chills
• Severe redness spreading from the scrotum
• Testicular pain in a child or teenager

These signs may indicate torsion, rupture, severe infection, or another emergency.

Frequently Asked Questions

Does testicular ultrasound use radiation?

No. It creates images using sound waves and does not use X-rays.

Can ultrasound detect testicular torsion?

Doppler ultrasound can identify reduced or absent blood flow, but emergency treatment should not be delayed when torsion is strongly suspected.

Can ultrasound tell whether a lump is cancer?

It can identify suspicious features and determine whether a mass is inside the testicle, but additional evaluation is required for diagnosis.

Does testicular ultrasound test fertility?

No. It can identify structural concerns such as varicocele, but semen analysis and hormone testing are needed for a broader fertility evaluation.

Do I need to fast before the scan?

Usually not. Special preparation is generally unnecessary for a standard testicular ultrasound.

Can international patients receive testicular ultrasound in Busan?

Yes. International patients can receive routine or urgent Doppler ultrasound, urology consultation, and follow-up treatment in Busan.