It uses sound waves to create clear pictures of the male reproductive organs. It is the absolute best first step for investigating any lumps or pain in the groin area.
About this scan
Common Indications for Testicular Ultrasound
Your doctor may request a Testicular Ultrasound for:
- Investigating the cause of pain, swelling, or trauma in the scrotum.
- Evaluating a lump to see if it is a solid mass or a fluid-filled cyst.
- Checking for testicular torsion (a twisted cord that cuts off blood supply).
- Diagnosing epididymitis (infection or inflammation of the coiled tube at the back of the testicle).
- Finding the location of an undescended testicle or checking for enlarged veins (varicoceles).
What exactly does a Testicular Ultrasound show?
It shows the testes, epididymides, surrounding fluid, and blood flow. It can distinguish many fluid collections from solid masses, but not every mass can be classified by ultrasound alone. Doppler findings must be interpreted with the examination, and normal or preserved flow does not always exclude intermittent or early torsion.
Are there different types of Testicular Ultrasound scans?
The Radiographer will almost always use standard ultrasound to look at the anatomy, combined with Doppler ultrasound to carefully check the blood flow entering and exiting the testicles.
Will the scan be painful?
The procedure is painless. However, if you are being scanned because you have a sudden infection or a twisted testicle, the light pressure from the wand might be briefly uncomfortable.
What are the important limitations?
Ultrasound does not use ionising radiation, but a useful result still depends on the clinical question, the operator, the equipment, patient anatomy, and whether the target can be reached by sound waves. Gas, bone, body habitus, pain, movement, and a limited acoustic window can hide disease. A normal scan does not automatically exclude the suspected condition; persistent or worsening symptoms need clinical reassessment and sometimes repeat ultrasound, CT, MRI, laboratory tests, or another specialist test.
Ultrasound should be used for a medical purpose, with output and examination time kept as low as reasonably achievable—especially in pregnancy and with Doppler. Internal scans and procedures require explanation, consent, privacy, and a chaperone according to patient preference and local policy.
Before your appointment
Do I need to prepare for a Testicular Ultrasound?
No special preparation is needed. You can eat and drink normally before your appointment.
During the scan
What happens during a Testicular Ultrasound procedure?
- You will be asked to undress from the waist down and put on a gown.
- You will lie on your back on the exam table.
- The sonographer will provide a towel to drape over your thighs to support and elevate the scrotum.
- Warm gel is applied to the skin, and the sonographer gently moves a handheld wand over the area to take pictures.
How long does a Testicular Ultrasound take?
The scan is usually quick, taking about 15 to 30 minutes.
When to seek urgent help
When should I seek emergency care?
Sudden severe testicular pain, a high-riding or abnormally positioned testis, nausea, or vomiting may be torsion. Seek emergency surgical assessment immediately. Ultrasound should not delay treatment when the clinical suspicion is high, because the chance of saving the testis falls with time.
Sources and summary
Sources and further reading
Conclusion
Testicular ultrasound is a useful, private examination for scrotal symptoms, but suspected torsion remains a time-critical clinical and surgical diagnosis. A technically reassuring scan should not override persistent severe symptoms or delay specialist review when suspicion remains high.